All in all, yeah some fighters got it easier than others but only because their talent and potential was already seen early in their careers.
Those types of questions came up during the start of Ukraine vs Russia was 2 years ago. This is one of the sports where Russians excel in US. Somebody will ask it's not surprising but 2 years later? mmm
Kai Asakura got into UFC easy. Dana saw this kid's potential because he had been fighting in Rizin for a while. He got a title shot in his UFC debut, he wasn't successful however. Mike Venom Page took years before he got in UFC, he aged before he got in. If he was absorbed from Bellator while younger he would have dominated the WW.