I think it would be a much better UX for 90% of users. But it would require the store to exist from the start so it contains all/most of the content. That never happened on windows.
a bit of a silly comment. a PC is not a phone. a phone is something very personal, something you can lose very easily (and a lot of people do), something that you use all the time outside your home (on the street, on the bus, etc). a PC isn't that.
