Next year will be the third big WR class in a row...
I think this is the new normal.
So many schools are running complicated passing offenses now that there are more WRs who are NFL ready than there used to be. This goes along with the trends in the game.
We'll see who rises, but 2022 doesn't look nearly as good as the last three, probably four, classes.
QB's, WR's, and OL are a getting much more/better training, though, so, overall, you'll continue to see them get better.