What did I say that confused you? If Triple H was head of creative after Vince left, that means he's directly responsible for everything that has to do with the booking, good and bad. Literally everyone's pointed out the shift in quality after Vince left, and Triple H getting promoted is a major factor in that.
Unless you think WWE is no different since Triple H took over, and it sounds like that's what you think, I don't know what to tell you. There were multiple reports coming out that Vince had a hand in the RAW after WrestleMania 39. Everyone was saying it felt like a Vince show. Bryan Alvarez had a meltdown over it, wondering if the eight months before that were meaningless. Vince's style is distinctive enough that people can notice it, good or bad.
When I'm talking about WrestleMania 41, I don't mean the people here. We complain about Triple H's booking enough. I'm talking about the general public. Wrestling fans everywhere are going to be like

if this WrestleMania isn't up to par.
The standards are higher now and what we talk about here is going to become more widespread if 41 doesn't hit the mark.