This just kindve comes across as immature imo. The entire reason NJPW keeps producing all these great matches is because they give the wrestlers pretty much creative freedom for their matches, the only restriction probably being a time limit (which is a lot longer that your typical WWE match).

Sure Kenny may excel as a workrate machine, but you have to imagine how he would translate on the main brand and all the restrictions they enforce. His promos would result in crickets and his leeway he has with his moves would be gone, also having to know how to work with multiple hardcams on him.

It’s not so much a talent issue, it’s about how each company presents itself and the steps they take to enforce that image.