I so agree with you. I couldn't believe they actually destroyed the planet, even as I was watching it happen, and I was expecting them to go back and fix it, at the end, or at some point, or...anything. It's Vulcan. You do not blow up Vulcan!

I kept clinging to the fact that "this is star trek, all the good guys have to live so they can go forth and journey and make more movies you know, be the crew of the Enterprise!" but after destroying Vulcan, the only faith I had was that Kirk and Spock would make it.