About the "vision" comment, at my work there is always a support team, they get feedback from users and we never give a response "it is our designer vision or our dev leader vision that things are like this". The differences are that
1 we care for each and even one of our users so we never say "go use our competitors because we don't care about your problem"
2 we do not have a big birocracy or a tyrant with a big vision, so we can think for ourselves, propose solutions and implement them. Sure it happen that later the designers demand we simplify the GUI but we know that each complex feature is still used by some power users and w propose ways to keep it in, but more hidden so designers don't complain.
Maybe GNOME does not have enough money for their big ambitions but they have a lot more then other DEs.
My summary would be, vision is fine in your hobby toy project, GNOME, Chrome, Apple's OSX are not toys, if you do a radical change only based on a dudes vision IMO you are doing it wrong, you forgot about the users and are only thinking at your ego/CV.