If Stallman wants to publish a new license, he is certainly free to do so, but he doesn't have the power to make other people use it.
I share his concern about DRM. I think it's not good for consumers. However, license restrictions is not the way to deal with this. Personally, I agree with Linus' more pragmatic stance to Stallmans.
While it would be tremendously beneficial for Linux vendors to seperate themselves somewhat from the leftist Stallman and his radical anti-commercial philosophies, the reality is the majority of any Linux distribution is comprised of software licensed under Stallman's GPL, and Stallman owns the copyrights on much of that software. They can of course "fork it", but then they are left with having to completely manage all those pieces themselves, and with the tiny income that free software provides these companies it may not be possible. We'll know if they're serious about seperating from Stallman if/when someone sues him for patent infringement, too bad it hasn't already happened.