Soderling and Berdych were one win away from having a Grand Slam. Soderling two times.
If the courts get sped up, don't you think there's a big likelihood of seeing such players as Grand Slam winners?
And if grandmother had balls, she'd be grandpa
The point is, the courts are not gonna be sped up and the most dominant players of this era are not ballbashers. In fact just because of a few upsets as of late people are just having a kneejerk reaction. If the top 3 was composed of Del Potro, Tsonga, Berdych and they had 30+ slams and 50+ masters between them, you'd have a point. The reality?
Clownga: ONE slam final in his career
Berdych: ONE slam final, one masters
Del Potro: ONE slam, no masters
others: journeymen who can cause an upset, but generally lack the game to stay consistent and win big titles.