[gpm]

Do the media partners in turn have contracts with youtube requiring that they upload to it exclusively?

If not, maybe even if so, that might not be such a bad thing. It would mean that if you could negotiate a deal with a single media group to upload to your platform as well you get a lot of content. I don't imagine these businesses are any happier with being hostage by youtube than individual creators.

[input_sh]

Hell, one of them (probably the most interesting one to HN readers) even has its own video platform: https://watchnebula.com

To name some of the creators: CGP Gray, Kurzgesagt, Minute Physics, Real Engineering, Philosophy Tube etc.