A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
So 5 months later, and no response so I guess someone was confused or lying.
Meanwhile, I've come across another issue:
Because the media web part is total rubbish, I've been adding video tags directly and had no problems until I tried with a 580mB video. The only way to get it to play was to compress it down to under 300mB. I'm not aware of any limitation on video file size so I need to get the documentation for that. Please don't ask any other questions - just point me to the SLA on video file sizes. My company will be filing for a refund for our 10k licenses until we get that.