I agree with your points... From my POV, the pattern seems to be good/bad/good/bad, but what actually happens is a subtle lowering of our standards and expectations that we have towards what an OS has to do and how it does things. With every bad version, the next version seems to be less bad or even good, but what it does is lower the standard further. Stuff started to move to one drive, office is all cloud now, they are subtly chipping away the personal computing concept...