No, no, no, Hell NO!
"Hell, they can even make the files DRMed, so long as you make quality players for all OSes and offer a reasonable means of ensuring multiple devices can access the content"
Cue the sudden proliferation of DRMd player because the various studios can't agree (I'm looking at you, Netlfix). More importantly, I suddenly have to use one of THEIR players instead of (say) MediaPlayerClassic or my favourite open-source HTPC application. And on top of that you're happy with the apps phoning home?
I purchased a licence to watch the media. Frankly, how and when I watch it is none of their damn business.
There's a reason I rip my DVDs/BluRays rather than use their idiotic UltraViolet download service that comes with them.