Tragedy has always been part of STAR TREK. Often in its finest moments . . ..
But Trek has always had at it's heart a feeling of optimism. The belief that things were going to get better. That WE would grow and better ourselves. The we would overcome the trails we faced and we would do it together. By joining with people that are different than ourselves. To find strength from our differences. Tragedy has been a part of Trek but a small part overall.
I don't see how this movie is different. I know Trent talks about this all the time, with both Destiny and Trek09, but I just don't see the qualitative difference between this tragedy and all the others. Yes, there's lots of people on a planet, but as has been mentioned before planetwide death has been an aspect of both the TV shows (Doomsday Machine et al) and the novels (Genesis Wave, for starters) since the beginning.
I didn't see a movie where, at the end, they're all like "oh fuck we lost VULCAN! Best give up now! Life is shit from here on out." So I don't really understand the problem.
A fundamental message of optimism is at best patronizing and at worst insulting if nothing bad ever happens. It's easy to be optimistic when it all works out, when no main characters die, when every mission ends in more or less success, when the Federation is never threatened, when it is the supreme power in the galaxy, when every problem can be handled. To make a message of optimism have meaning, sometimes shit has to go wrong. THEN being optimistic matters.
Take Voyager, for instance. I basically believe that the reason Voyager wasn't as popular as the rest had nothing to do with the cast or characters or episode-by-episode stories, and much more to do with the fact that they were in a situation with unbelievable dramatic potential, but NOTHING bad EVER happened to them, ever. There was never any sense of peril. So they were all optimistic, "we'll get home someday!", but I didn't give a crap because it certainly looked like the life they had out there was just fine. The optimism, the fundamental conflict of getting home, had no meaning because there was nothing pushing against it.
Or, more personally, I teach in an area of Los Angeles that is a complete disaster, educationally speaking; my 11th graders have a 3rd grade level in mathematics when they get to me. The system has already failed, the tragedy has already happened. I get a new wave of refugees off of a destroyed world every year (if you'll allow a little melodrama in stretching the metaphor). What use is an inspiring message to me when it comes from situations where nothing bad has to be overcome?