UFC doing quite literally nothing to Conor after the bus attack pretty much set the stage for this type of insanity. If you're a big enough star and make UFC enough money you can do whatever you want. Conor stuck to his usual smack talk and upped the ante by going religion/family, Khabib saw that nothing happened to Conor after the bus thing and figured why not beat up Conor's entire camp after utterly decimating him in the octagon. Khabib is just a scary dude, both in and out of the octagon. Aside from pure $ Conor has absolutely no business getting a rematch. He got used like a training dummy in there.