The thing I'm wondering about is why they didn't make use of StackOverflows bew Collectives feature. Yes, launching your own thing gets somebody promoted, but in this case I think collaborating with SO could have made sense.
It's mind boggling to me, that Microsoft went with a redesign here. Personally the Windows UI never bothered me that much. I just feel like that they could have focused more on things like, stability, the search functionality or, and I'm not even kidding, printer and scanner support.