While I find it difficult to argue your points, it took a new offensive coordinator to put the pieces together. All of the player talent matters little when the scheme and or play calls make them over reach.
With all of that said, remember that an advantage that joe Brady has right now is the fact that the league does not have a ton of game tape on him. The NFL is very good about breaking teams down to identify tendencies and weaknesses. I believe it is part of the reason why Mahomes and the Chiefs look a bit pedestrian right now.
Let’s hope Brady can continue to work his magic.