My theory: CR7 wanted to stay, but Allegri had other plans.
Allegri wanted a no-pressure environment (his comfort zone), which wasn't possible as long as CR7 was here.
And he succeeded -> ppl are celebrating CL qualification.
https://oldjuve.com/2021/05/28/juventus-confirm-massimiliano-allegri-return-as-manager/
''Allegri will sign a four-year contract worth €9m per season at the club. His report also notes that the
Italian boss will have “more power in terms of decision making”, transfers and more of a “key role” overall at Juventus.''
CR7 is not the villain here.