Pretty sure they show the Hobus shockwave obliterating Romulus.
It must have been a slow motion camera. If that shockwave was in real time, then it is clearly traveling a tiny fraction of the speed of light. Which means it should have taken many, many years to reach Romulus, and millions of years to slowly propagate through the Galaxy. That would have given them lots and lots of time to react to it.
In any case the idea that you could "suck back" a shockwave and all the stellar matter spread from light years behind it is as absurd as the rest of the plot of ST '09.
So then it is "Star Trek", as scientific absurdity is on tap for the vast majority of the franchises episodes/movies.
Not at all. Very few episodes involve anything as ludicrous and totally unnecessary as the infamous Warp Speed Supernova or "sucking back" shockwaves from light years away.
It is science FICTION, not science, so a fair amount of wanking is allowed, and necessary. But the science part of scifi counts for SOMETHING. And for me, the silliness of supernovas that travel at Warp Speed falls in that area of superfluous, unnecessary wankitude.