Well, my question is does HTML even need to encompass everything it does. It seems to me that we have an ever expanding monster. HTML does not have to be everything for everyone.
A third party solution that they can't get hold of because the 'official' one only runs on windows and intel, and the ps4.
Plus, from what I've read Chrome should start losing market share immediately because it already has a form of EME implemented. All these people in an uproar over the W3C's decision should be switching to something else to show their concern.