My Name Is Legion wrote:
Because it would be dramatically stupid.
That hasn't always prevented the Trek folks from doing a thing, but let's be grateful every time they decline to do so.
Exactly. It's akin to the crap they pulled at the end of DS9 - Having the Defiant destroyed was a hugely dramatic moment...and then the next episode introduces the new Defiant, an identical ship to the first solely so they could re-use all the stock footage of a battle from a previous episode for the finale, and the characters didn't even bat an eye about the loss of the old ship. Intensely dramatic moment gone in one week. Fail.
Why would they have Vulcan destroyed just so that Old Spock can go do some "simple" calculations and bring it back into existence? It would be a cop-out, just like every single other tired reset button in Trek.