My mental justification is that the Tardigrades were either extinct at that point (which is stated to have happened at some point prior to the end of DISCO S3), or what few post-Message in a Bottle admirals might know about the classified project couldn't justify making them suffer-- because, y'know, that is a thing that happens with the spore drive.

Hell, even if it was an option, would Janeway go for it? We saw her get rightly pissed at the equinox crew for running their ship off space aliens' suffering. and I feel like the next-closest alternative known at the time (genemodding someone with Tardigrade DNA and also making them suffer through the jump) might also fly in the face of her highly principled stance.

The defining characteristic of US classified documents is that their release would cause some degree of damage to US national security, ranging from harmful to gravely harmful. here's a Cornell Law writeup that squares with what I know here.

Regardless of any opinions one might have as to the use and application of classification, in the eyes of the US government taking these documents without authorization is harmful by definition.

Best attempt:

The story is mainly about Kelvin Kirk learning to be less of the cocky dipshit he still is at the end of '09. He's still riding high from his victory over the future Romulans, so he really doesn't respect the seriousness the Chair should command. You see this in the completely unforced error at the start of the film--Spock is (for some reason) dead to rights, and Kirk decides that the power of friendship is more important than the Prime Directive. Pike rightly reams him out for this, but the character thread really comes to a head when the USS Vengeance catches up to Enterprise and prepares to utterly destroy her. Much as I complain about the movie, I do like this little moment of helplessness from Chris Pine's Kirk. Staring down the larger ship's guns, Kirk can only watch helplessly and apologize for leading his crew to their deaths. It has the same vibes as Kirk from Generations--he didn't believe he was dying until he actually did. Obviously, the general thread of Kirk actually taking responsibility for his crew culminates in him doing percussive maintenance inside of the Warp Core and dying for Enterprise's sins. He gets better, but honestly I can accept this as the transition between cadet Kirk of the 09 and the actually quite competent Captain Kirk in Beyond.

Spock is the other big character in this movie. Sad as it is, this is the only real time we get to see Kelvin Kirk and Kelvin Spock's friendship explored in depth. They were at each other's throats for most of '09 and Beyond focused more on McCoy + Spock's relationship. Spock's friendship with Kirk is the main avenue through which they explore Spock's classic dilemma of his Human vs. Vulcan sides. As cynical as I am about them recreating the end of WoK in reverse here, I will at least concede that Pine and Quinto did well with what they were given.

Main complaint, besides Cumberbatch being Khan: they totally wasted Bruce Greenwood's Admiral Pike here. I'm of the opinion that Kelvin Pike was the best version we'd seen prior to Discovery, and probably did more than a little bit in reviving interest in the character. Here he gets stuffed in the fridge like half an hour in to make Kirk mad/sad. What a shame.

In fairness, they did that on Voyager first.

Even if they didn't add more episodes, I will complain that it was an incredible waste of time that Endgame spent so much focus on Future Janeway's shenanigans. They could've done a cold open establishing her motivations and then taken the time used by the future scenes to unpack the weight of the crew we actually care about getting home.

I'd be remiss if I didn't point out that you have two pairs of the same person and that more than half of these examples (Solkar, Spock, Sarek) are sourced from a single family.

If I had a nickel for every time Uhura solved a problem by singing at it, I'd have two nickels. That's not a lot, but it's the same number as how many times Chakotay's been lost in the Delta Quadrant.

This was a fun episode. Some bangers, though I agree with some of the people who think some songs could have been shortened. The unexpected Klingon boy band was an amazing gag that didn't overstay its welcome. Overall, I think it's great to have Trek embrace the old-school campiness from time to time.

Anyone else convinced Captain Batel is kinda doomed? Pike got off the relationship trauma fairly easily in this episode.

I liked that this episode and Quality of Mercy fleshed out (prime) Pike's weakness-- he's very much a diplomat, not a warrior. He avoids conflict to a fault, and this distinguishes him from other "diplomat" captains like Picard, who's more willing to show his teeth when necessary.

It really contextualizes why Starfleet Command told Pike to stay on his Five Year Mission during Discovery s1--ya just know he would have gotten the Enterprise banged up while trying to make nice withsome T'kuvma fanatics.

I thought it was weird and a touch sleazier than we normally see from Ransom, but out of universe that is very sweet!

Are Orions now the designated species for calling out how essentialized Star Trek aliens tend to be? Because we have D'vana Tendi, the somewhat obscure Ensign Harral from Discovery, and now the crew of the D'var. You can argue the last one's just an extension of Tendi's character arc, but still, that's three series that have touched on this.

I was gearing up for a Gorn episode and they faked us all out!

I liked it thy gave most of the cast (sorry Ortegas) screentime and moved a lot of side plots a small amount.

Moderately bummed they retroactively made Thor (George Kirk) seem like a less good father, though.

To be fair, Sybok was the original spontaneous Spock sibling, even though Star Trek V was chronologically later.