They might not now, but who knows what the future will bring. If you went back in time 20 years and told the players that Wimbledon would soon be a slowed down dirt patch by 2011, they would've laughed in your face.
Wimbledon has not been slowed down too much, people are overreacting. Still has least service breaks and most aces out of any GS. It's mostly racquet technology that enabled better baseline play/passing shots that killed S&V. Agassi, who played in both eras on high level said it several times in interviews.
Carpet was removed at players' insistence, Federer included.
There has been no legitimate evidence that USO has been slowed down. AO has always been slow, hasn't changed.