I don't share the optimism. I mean, he was there when Liquid Glass was designed and presumably in a good position if he became an executive leader now. Sure, Alan Dye may be the face, but Liquid Glass was made by a very large department. And it is not like Apple's design rot started with liquid glass, this recent post shows that it is regression after regression after regression (which is also my impression after having used Macs since 2007):
https://pxlnv.com/blog/window-chrome-of-our-discontent/
It is sad that Apple is still extremely good at hardware (I have the iPhone 17 Pro and the design is stellar), but software has become worse and worse over the years. They can only get away with it because almost all of the rest of the industry is even worse (macOS is still a glass of ice water if you are in the hellscape that is Windows).