Yes, I expect all those long-promised "cheap administrative costs" will skyrocket on Help Desk additions alone.
But I'm not sure why Microsoft would almost 'chum the waters' and offer UI Alternatives such an obvious void to fill.
"We want to be Ubuntu"? "We want to be Xerox Parc"?
I keep thinking, "Maybe MS wants to focus on the Real Operating System - writing bits and bytes, data storage, device comms, etc. Except, uh, I'd have thought they could do this already after these first couple of decades.