When Google announced the EME DRM in the semi-public W3C HTML working group, it created a massive backlash. So W3C moved the EME spec under a new, closed, invite-only working group, and then announced that there is a consensus among everyone (there), and it can move forward to become a recommendation. They didn't even fix known bugs in the spec written by Google (e.g. architecture diagram in the EME spec is factually incorrect).

So I don't think this rubber-stamping W3C will do anything. They have no power over Google, and they know it.