I'm speaking from the beta. The act of going between a "traditional" looking UI and Metro and what is available in each is very disjointed.
It's not a direct parallel, but this and the fact that companies like Google have completely upturned the definition of "beta", or well, pre-releases in general, seems to show how people come to their final judgement very easily.
I suppose that could be why Apple doesn't release things until they're well and truly ready for the limelight.