It would be entirely possible to have software which can play the media and neither actively cooperate with nor actively ignore the DRMers' attempts to restrict it; indeed, that would have been the path of least resistance, the easiest way to go.
What exactly do you think the DRM in Windows is? It's primarily decryption, not restriction. The restrictions are already present in the media. You very proudly don't run Windows. Does this mean you can play all the BluRay discs you want, at full quality, with absolutely no restrictions? No, it means you can't play them at all.
Yes, it's hypothetically possible that Microsoft could write up an OS which allows the media to be decrypted and then used with no restrictions whatsoever. They'd immediately be sued by the content producers under the DMCA for bypassing copyright protection, of course, and would end up in the same situation as Linux and its kin are - no DRM restrictions whatsoever, because it would also have no DRM decryption capabilities whatsoever, and would be utterly incapable of playing anything.
I'm not sure the content producers would even notice. If they did, I'm guessing their reaction would be a huge sigh of relief. Don't get me wrong, I hate DRM as much as anybody. Make sure you're directing your anger in the right place, though - in this case, Microsoft isn't working against you. They're profit-motivated, sure, but they're including DRM to provide more abilities to consumers, not to restrict them at the behest of the producers.
If you think "High Quality" and "Most Expensive in World" are synonymous, then perhaps it is you who are mistaken.
In all reality, extremely high-quality headphones can be had for a few hundred US dollars. Beyerdynamic DT 880s are very well-regarded, and cost only $275. Perhaps you can construct a better-sounding stereo system for a hundred times as much, and hopefully your $5,000 headphones sound slightly better. However, listening to something on $500 headphones is closer to a perfect listening experience than most people will get in their entire lives.
Double-blind testing is a magnificent thing. A shame so many audio nuts don't quite understand the practice.
If you think the system is working, ask someone who's waiting for a prompt.