There is no obligation for publishers to send early copies, although when you don't do it selectively you're sending a bad message that you have something to hide or an axe to grind, so it's pretty bad PR to handle things that way.

Plus nothing stops an outlet from still getting a copy and reviewing the game day one. With so much of today's content being live video the kind of thing you're describing is... pretty inefectual? I get that it's the stuff people remember from the old days when there were more gatekeepers and print media could be reliably delayed by months by doing that, but... yeah, that's pretty anecdotal these days. It's mostly messing with critics' free time, which isn't the best way to get them to be nice to your game, if that's what you're trying to do.