I don't like the implications that there is a device that can absorb phaser fire.
I also find it weird that the "intruders" who I assume know English, are not able to pick up on Federation Standard, I assume it is still not that different from English, considering Starfleet did start in North America. You think when you see on the hall of a ship, "U.S.S. Enterprise" or when you enter and take a look around and see the service panels that, they might think for a second that this ship might have hailed from Earth.
Also a bit weird how they haven't encountered Federation ships with humans with their couple of hundred year space travels. But I assume maybe they went through the same wormhole as V'ger or something. And who knows what kind of trauma they have to live through.
Despite these logical inconsistencies, I think I still enjoyed this mess of an episode.
The spectacle was over the top. I like seeing the TOS crew interacting with each other. And I enjoyed the Enterprise crew coming up with a solution to save themselves, though their escape and timing with the Farragut's attack did seem awfully convenient. Would have felt a little less contrived if they had coordinated with each other a bit sooner to match up the plans, but we don't always have so much screen time to explain things and the plot sometimes needs to get moving, so I can forgive it.
I also like the Pike to Kirk talk talking about empathizing with your enemy. Feelsl ike foreshadowing to Arena.
Anyway, I currently like this episode.