Any time you introduce two way communication, you introduce the possibility of DRM, but that does not guarantee it. I can still use my HDMI with my linux PC. DRM is exclusive of the technology and I see no reason to hold back the technology because we are worried about DRM.
There are lots of compelling reasons to dislike this change. Among them the fact that I have a large investment in traditional headphones and devices that work well with them (my iPod, my HTC Phone, my stereo, TV, piano, guitar amp, etc etc etc), a decrease in quality, convenience and weight of wireless headsets (how long do they work? How much do they weigh? Can I swim or workout with them?). But DRM is not automatic.