I think mutahar dropping out is a sign of the end. soon, KC will stop interacting with him and he will go back to old life. honestly, this is going to hit him hard.
I know we tend to see things through a Phil shaped lens on here, which makes sense given he's obviously the main subject, but it feels like the Muta stuff really was a coincidence and not specifically related to Phil. If anything, the fact he cancelled at all shows how little Phil means to him.
Phil holds grudges and doesn't forgive nor forget.
I agree with Phil holding grudges and never forgetting them, but I actually think he forgives pretty easily. Well, temporarily, at least, he's not afraid to go back to a grudge if it suits him. It's just very rare for someone to apologize to Phil because, well, most people don't have anything to really apologize for. Phil is more often than not the aggressor. He's sometimes the butt of a joke by someone more popular, but said people have zero reason to interact with him and are likely completely unaware Phil even said anything in the first place.
But Phil has shown he's pretty easy to get on the good side of. Previous trolls/detractors just have to appeal to his apology fetish and say something vaguely positive and they're back in Phil's good graces. He'll drop them if they step out of line, but for all his bluster and banning, Phil is driven more by his ego and will keep anyone around/leech onto someone who shows the vaguest hints of kindness/ego stroking.
I mentioned it before, but I honestly believe if Keem had initially approached Phil with something like "Hey man, I'm starting a podcast and need a great gamer like you on it to be the cool guy," he'd have hooked Phil without spending a dime. As long as he sent it via email. And not during business hours. While I don't think he can just as easily get Phil onto the podcast now, I think if he made a 10 second video that was basically "Phil was right, I was wrong, hail to the king," or something along those lines, he'd at least get bumped up to neutral status in Phil's mind. If he threw out a few more positive comments over the next few weeks, they'd probably be fine and Phil would memory hole their feud and would do so until Keem either slipped up to the point everyone is dunking on him, or he says something negative about Phil.