("video" being code for "video game" back then)
Well, OK, so when should I expect that I can build a brochure site for a hotel that uses HTML5 videos and have one video format and one set of custom controls to work with? Because the world has moved on and Flash is no longer a viable option for this kind of work despite offering those advantages for many years, thanks to much the same browser developers who can't get their act together and actually provide a better replacement. They can't even manage to make the default "this is a video" overlay look the same, or even put it in roughly the same place so you can design placeholder graphics accordingly.
What's wrong with regular HTML video (i.e. the OBJECT tag)?
If your company's video site actually is YouTube then this kind of problem probably doesn't affect you all that much. However, for normal web sites that are just trying to take advantage of multimedia as part of the presentation, HTML5 audio and video are a bad joke, and the punchline is that all the much better technologies that used to be viable alternatives have been deliberately killed off anyway.
I hope that you didn't consider Shockwave Flash a "viable technology".
"It may be that our role on this planet is not to worship God but to create him." -Arthur C. Clarke