Reading through this thread, I am confused. It's the spin-off fans and not the TOS fans who've got their panties in a bunch. I am at a loss to explain this. Is it because the comfortable sameness of the four spin-offs is not present in this movie? Is it because "their" trek is gone now? Do they now feel that they have memorized the Star Trek Encyclopedia all for nothing? Is this movie just too different for them? It's quite strange, when you think about it.
I too noticed this, and in fact am one of the "I'm not quite sure about this movie" people who is a spin-off fan (TNG). For me, it's purely that my favorite Trek now seems to have little chance of occurring in the new Trek universe they're creating. While the original has diverged somewhat from what it would have been from the initial branching point of this new universe, the changes will inevitably have a more drastic effect on the long-term future of that universe. In other words, as a spin-off fan, now I'm left with a Star Trek universe in which my beloved spin-off either won't happen or will be so different that I may wish it hadn't. So, silly as it sounds, I think that's the thing we spin-off people are having trouble reconciling: a new Star Trek universe that may well
not include the things we love best about Trek (be it DS9, TNG, or what have you).
Hey, at least ENT people are safe! But seriously, yes, I know my beloved TNG will always be back in the original Trek universe, so I'm becoming okay with it. But I won't be able to feel the same way about this new alternate universe as I do about the original, for the reasons outlined above.