People have always complained about new versions of Windows. They bitch and moan and they cry and vouch never to touch it, but in the end, it does not matter.
Most people buy a new PC every few years and it comes with some sort of OS and it looks different every time. Whether that was XP or Vista or 7 or 8, they won't know. And consequently, we can complain all we want, but if it comes pre-installed and IT departments like it, it will work.
Don't get me wrong, Microsoft will die eventually (just like we all do), but it will be a gradual, less painful process. Maybe this is one of their last serious stabs at something exciting. But they will die of obscurity, not concrete failure.