One complaint that bugs me is the ‘Kirk is everywhere/Kirk is the centre’
Which he has been since at least Khan, and in two films directed by Nimoy. (Including hanging about Spock and Sarek at the end of IV)
Because… that’s how Trek was set up. Shatner, as Kirk, is the star. It’s how things worked back then.
If anything, Kirk is centred less here, because that’s Spocks half-brother, and *everyone* gets a scene or two. If the deleted scenes were in, even the guests get more to do than they did in other films.
And for him being the hero?
Well, he’s been shown as less heroic or put through the wringer in three movies now (making mistakes in Khan, losing his son in Search, fish out of water in Voyage) so it’s ok to rebuild the legend a bit — again, this is how stories like Trek worked back then.
The idea that it is just because Shatner is working behind the scenes this time is daft, and not a complaint levelled at Nimoy, who was behind the scenes in three out of six movies, and had a *lot* of latitude in the first two due to contract wrangling. The clauses of which are why he encouraged his friend Bill to get behind the camera on Final Frontier.
The jokes are studio mandated, and at least make some sense in situ. The only out of place thing with Uhura is that they ended up dubbing in someone else singing — if you look at the characters past portrayal, in the swinging sixties, it fits right in with TOS. It may offend our modern sensibilities, but it’s just Trek Trekking.
It really is the most TOS of the movies, even if the FX are more in line with Season Three…