This isn't me just saying something random, it's something I've read about recently and had come out of studies of changes in music over the last 60 years.
There have been quite a few examples of albums that were bombed on release by both critics and the audience, but then ended up as critically (+publicly) acclaimed and massively influential (+still standing the test of time) many many years later just from the past 2 decades. That alone tells me that whoever claims they have a method to predict the future influence and "standing the test of time" on aggregate is just playing around.
Hell, even Limp Bizkit, Limp fucking Bizkit, has been widely retconned into being a charmingly nostalgic relic of music at the turn of the millennium instead of just, you know... bad.
A study in 2022 saying that most people say music from before 2010 was better is meaningless, because a study in 2032 will show that music from before 2020 was better.
those albums you mentioned ARE dreck ;)
Less than half the decade later, the critical and public opinion took a full 180, with plenty of new major artists (like Brockhampton) claiming they owe their entire music career to that album. You could easily hear the influence of that album pretty much all over other artists' works.
Disclaimer: yes, I am aware that over the past few years Kanye had become a person doing things that are hard to defend in any way, but that's not something I am trying to do here at all. A lot of those actions are pretty much indefensible. However, his personal behavior doesn't change the impact of his music from 2008 on the industry and music as a whole.
People have felt this way since time immemorial: the music they grew up listening to in their formative years was just better than whatever exists now.
Your dad's dad, or his dad depending on your age, thought that Led Zeppelin was just a bunch of talentless idiots making noise.