I like how it's called Official when obviously it wasn't.
Look, RT is meant to be for *Pad tablets, where the peripherals and the drivers are tightly controlled to reduce the support burden and the mess of will nilly drivers that you get on desktops, with crashes and bugs (thanks ATI, Nvidia and Intel). By controlling the drivers, and collecting the crash logs you can react quicker and push the drivers out over Windows Update, something you can't do with 3rd party drivers at all.
So yes, it is likely a deliberate decision. Does it mean there's a plot to kill wired connections? Not likely, otherwise they'd have killed them for the surface pro too wouldn't they? Nor would they have delivered built in drivers on the desktop.
I've said it before and I'll say it again, we're too damn disorganized to be as evil as you think we are.