Yes, it's petty and juvenile to joke about the man who helped take Star Trek
from "sittin' on top of the world" to "full of fail" in the span of a decade.
This early positive reaction to the screening is good. Special effects and music can only add so much, and shouldn't be expected to carry a film. So if this reaction is strictly off the story and performances (and whatever ILM has completed to date), then I think it's a good sign.