You're describing Russell Wilson last year. Carried his team in the playoffs but short of a championship.
Wilson is a stud and is truly a leader after the team had to gut players when he got paid
KC will face a cap crunch with this contract kicking in 2 years
They will need to be elite at the draft table and find cheap UFA labour
The dynamics all change when your elite need to be paid
Just dont follow my Rams blueprint on how to fukc up a roster after a superbowl appearance