Id be curious to see their contracts…
I assume the UFC would be like the WBC or IBF making you sign a contract that says you can only
Fight under them.
Otherwise, Belator, Pride, Cage and UFC would be just like the Boxing sanctioning bodies.
Your inner boomer is causing you to miss out. These guys did a very interesting and creative series. They may be shit at advertising to your specific age bracket but it’s definitely your loss to miss out on this one.