A lot of this is mental for Wilder.
To say he didn't have thunder in those hands would be a lie.
Easily the one heavyweight with guaranteed one punch knockout power.
His success is predicated on absolute confidence in that weapon. Fury broke that confidence. After that Wilder made bad choices, blaming his trainer instead of himself.
AJ lost to Ruiz and to Uysk and looked really poor and gunshy, when he got together with Davison his confidence came back and he once again looks like a champ.
Wilder never got his confidence back.
The problem is, when you've been found out in one way, you have enough game and knowledge to switch ur tactics and style up to win the next few. We saw this with AJ, that's why my respect for him is up there with the best.
Wilder was always a one trick poney so once that one trick is gone and u have no game, it's over for you.
He could have got his confidence back in a few more of his usual bum of the week fights but he decided to go again vs real competition and got sparked. Which would have happened anyway.
You can't coach a 40 year old new styles, you either had the technical ability from early or u didn't. Wilder never had it.