Why does Kirk have to die? What the fuck?
This was apparently one of the requirements from the suits at Paramount if the movie were to be made, that Kirk had to die in it.
They also came up with crashing the ship into the planet.
Actually, neither one of those is true.
There was no requirement to kill Kirk from on high. There was no real thought to keeping Kirk
alive, however. Berman thought that if Kirk were alive at the end of the film, then audiences might expect to see him in future films, which really negated the whole passing-of-the-torch idea.
As for the crashing of the
Enterprise, that was planned to happen at the end of the sixth season of
TNG, except they realized that they couldn't do it effectively on a television budget. The
Enterprise would have been retired and turned into a kind of interstellar
Queen Mary, and on an ambassadorial ferry mission, the saucer would have crashed. Since Moore and Braga couldn't use that setpiece on television, they resurrected it when they were spitballing ideas for Berman.
One bizarre rumor about the destruction of the
Enterprise-D that I've heard is that it was done because Andy Probert receives royalties for the use of the
Galaxy-class design. Destroying the ship and designing a new ship would limit Probert's royalties. I've never been able to verify the rumor, but I've heard it from several unconnected sources over the years.