You don't have to blame anyone for that but Ten Hag. He was the one who treated Ronaldo like garbage and made everyone to believe that Ronaldo is a set back to the team. Look at where Ronaldo is currently, he has made SPL famous and receives a fat pay. I wasn't really happy that United treated Ronaldo that way but you cannot stop him from shinning wherever he goes.
Yea that blame should be apportioned to Ten Hag, he treated Ronaldo as if the guy was a threat to his career and I think that the reason must Manchester United former wouldn't want to come back then, Ten Hag messed up in the club because he never listened to advise, he do things he likes and I believe that's what contributed to him not being able to give the club what they wanted, as for Ronaldo, Ronaldo remains what he is any, any time, Ronaldo is a definition of Raw talent so such Raw talent like him are unquenchable fire so no matter what anyone does to them, they will keep winning, when I look at Ronaldos age and his continued performance, what coyme to my mind is natural talent that's beyond human imagination, that's what he represents.