Re: (SPOILERS!) About the SuperBowl Trailer...
Eh, the more I think about it, if they really were going to destroy the Enterprise, they wouldn't have shown this in the trailer. J.J. Abrams is known for secrets, and if they were going to destroy the Enterprise, I don't think he would have let it out of the bag like this.
I think you're probably right.
Dinosaurs are just really, really big chickens.