Because the bottom and mid table sides are clearly better than they were 5 years ago. The top sides are struggling with PL sides but still dominating Europe. The congested schedule is a factor, too.
I offered evidence and you offered “because you watched it
Nope. The top teams are simply worse than they have been bar City really who are the outlier.
The Prem is absolutely woeful as a league right now and has been on the downward trajectory for years now in terms of overall quality.