Snippets from the text:
"One big barrier remains: users can’t collaborate directly from their web browser without downloading cumbersome plugins" ... one of the major stumbling blocks in adoption of this technology is a common codec for real-time video ... Cisco ... providing ... a binary module that can be downloaded ... today’s latest release of Firefox, which will automatically download and use Cisco’s OpenH264 binary module ... The topic of a standardized codec will once again be addressed by the IETF in its November meeting. It is our hope that announcements like the one today will ... pave the way for a decision."
A decision that requires an open source web browser to download a binary module from a third party?
Another option would be to use the free and open source video codec that's already in every WebRTC-enabled browser, without any binary modules.