Maybe this is a dumb question, but what difference does it make what's in the spec? People will pick the browser that plays the videos they want to see over the one that follows the spec every time.
South Korea built vast infrastructure around IE6 and ActiveX. Just a year ago a full 60% of Korean traffic still came from IE6. Why? Because they relied heavily on features that were not in the spec that Microsoft deprecated and nobody else can or will implement.
An extreme example. But it highlights the importance of sticking to specs that can be freely implemented by anyone. Five years from now when MPEGLA decides to throw down the crap hammer do you want to have to keep around old Safari binaries just for sites that migrated to h264 while the rest of the web moved on?
