Im guessing he felt obligated to stay in shape because of a few reasons and now has failed to stay in shape
-The competitive nature of the PC
-Being around Triple H and wanting to impress him personally
-Now works with TK who is a mark for Britt and by proxy, Adam as well. Doesnt need to impress him since TK wants to bang britt or something
-Now works with his friends and doesnt and has gotten complacent since he wont be released and will always be featured
-Now traveling at least a couple days a week, doesnt have the ubermensch breeding facility of the PC with endless equipment and trainers around 24/7
But he really needs a character refresher and to workout harder/more. That running the ropes webm is hilariously pathetic, it makes me laugh every time I see it and I used to love Cole
Plus now he's working with young guys who are genuinely good, his in ring style is the norm at AEW and it isn't cool to see someone spam superkicks like it was in WWE since nobody did them in the E but literally everyone does in AEW