I was on the KC board last week, they are still salty as hell about Brady/The Pats turning them away twice when Mahomes was on his rookie deal. And rightly they should be upset they couldn't get more out of that. As we are seeing now they will still be a team to compete every year, but that monstrous advantage is gone, now they only have the advantage of having the best current QB in the game, without anyone else quite at his level.
Frankly I think they are lucky.
Brady had to deal with Peyton, Brees, Rodgers, Mahomes, Warner,
Montana had to deal with Kelly, Marino, Elway,
Now with Brady officially over the hill (hate to say it, but he just wasn't the same this year, and it wasn't entirely on his teammates/coaching) he's dealing with Allen, Rodgers who might retire this or next year, Burrow? Herbert? Wilson? Jackson?
It isn't just the lack of rings, none of those guys have the same feel as a Rodgers, Elway or even a Kelly or Warner arguably. Allen can be dynamite, but he can also lay dudes. I'd argue Mahomes has had it hard going against the GOAT early on but when you look at QBs who should rightfully be in the top 10 discussion when all is said and done, he is primed to go against the easiest field of them all unless someone emerges. And the draft class of 2021 which was suppose to give rise to the next wave not unlike 1983 has been a massive disappointment on the whole with no one seeming to truly be 'the next guy'. Yes Lawrence had a great second half last week, but on the whole it's clear he can't be consistent.
So frankly Mahomes as of now has no excuse not to put up multiple titles in the next 5 years as literally no one but the dangerous but inconsistent Allen is even close, and I've met no one who would argue Allen as the feel of a top 20 all time get, let alone top 10 which Mahomes clearly is. So if Mahomes fails to take advantage of this window, that's on him.