The negative reaction toward 8 is significant: Would you buy Windows 8? (Poll) | ZDNet
You miss the point.
This customer preview is supposed to be feature complete. Just bug fixes.
They were intending to release it like this. i.e. they thought they could i.e. would be able to.
e.g. I could go to the theatre. I am not at the theatre now - but I could go.
However, I think they might change their minds and do something to ameliorate the worst issues.