Only Fedalovic is able to create an epic show on courts, we have seen only two non-top 4 players in slam semis this year, which says pretty much about this ERA.
Back in 90's, GS semifinals set was utterly different in every slam.
On WTA every slam this year had different winner and people whine that it's low quality, non-consistent players, etc. Here it's only the top 3 winning and people whine again, because the top 3 are too dominant etc. I'm not sure there is a solution where people are not going to whine