Far too smug and up its own arse while not being half as clever as it thought it was.
This x 2
Letting the audience in on the situation right from the start pretty much killed it flat. It may
have worked better with the audience's viewpoint level with the just the cabin-dwellers - so the oddness builds and we at least have some sense of mystery, but no, they had to try and flatter us into thinking we're in on something clever.
And clever is not how anyone could describe its sub-Outer Limits 'Food of the Gods' denourement either. Absolute pish.