I’m going to suggest that part of the problem w/ people using & understanding Win8 & taking issue w/ the UI may be the following…
One does not need to ‘dwell’ on Start. One can use the familiar Desktop & yet, still, select any desired APPs BUT, let or have those active APPs (say, like Weather) sit on the APP Bar… no interference w/ Desktop, no actually leaving it (to Start). I think maybe people are not aware of & using the APP Bar in conjunction w/ Desktop. If so, I suggest there would be much less grumbling about Start, APPs & the Win8 UI.
Cheers,
Drew