Even though the other browser vendors have positive reaction, note how this follows the same pattern Chrome has followed for over a decade:
- scribble on a napkin (explainer)
- ask others for their position
- ship regardless of position or any outstanding issues
- claim it's a new standard
I'm not familiar with how this process went in this case, the blog post seems to suggest that feedback from other vendors was incorporated. Can you elaborate on the outstanding issues?