This is why Windows on ARM has largely been doomed while Mac on ARM will immediately succeed: Apple told its partners that this is the future of the Mac and expected them to deliver if they intended to continue to be on Apple platforms. Microsoft has constantly and aggressively failed to commit. Be it to Mobile or ARM or HoloLens or whatever. They simply haven't made it clear that supporting their new platforms is co…
Apple is selling hardware (and now services), the software at most should break even. Apple gets obvious benefits from its approach - verticle integration, hw sales...
Microsoft sells software. MS doesn't care if the platform is x86 or ARM. Why would it? MS gets paid either way. As far as its concerned it would offer the option (to make Windows future-proof and run on more devices) and let the market decide.