What you're saying about being swept into a corner strongly implies that you believe DRM measures will in the future successfully keep open source projects from using various media. I know of no major DRM implementation that has not been quickly cracked, and I strongly believe that the reason for this is that the concept of DRM is technically flawed. As such, I see no strategical reason what so ever to accept even minor restrictions in order to gain brownie points from the content industry.
Quite the opposite, the content industry has continually tried to block free software from accessing their content in any way they can, no matter what we do. If proprietary software keeps prioritizing partners over users, while open source does not, that will ensure free software use will increase, and content providers will be forced to take notice of us by sheer force of market share. We don't owe content producers anything, we owe it to ourselves and our users to ignore them and stay true to our ideals.