Frontier, as is their right as the releasing company, have made a decision that they do not want to be associated with a potty-mouthed whining adolescent who has made a 'living' out of vilifying the Frontier organisation without really adding anything constructive as far as I can see. Having lots of followers is not necessarily a marker of kudos... there are plenty of anti-vaxxer sites for example with thousands of followers, but as a medic, I would not want to involve them in our Covid vaccination programme or garner their opinions.
Bottom line, it is Frontier's prerogative and decision that they do not want to align with him, and he can go buy his own Alpha release like the rest of us.
The only shame about this is that he has had so much free publicity which is obviously a benefit when you're a youtuber. Personally I'd rather stick pins in my eyes than listen to his incessant whining hyperbole!

No doubt now the avalanche of Yamiks fandom