And... what? Nadal should be given title already then?
I don't see Nadal as the favourite for Wimbledon actually. It's just interesting to see what the level of the players this year has been- Fed had only beaten Tsonga - lost to every other top 10 player. That's telling. Of course Nadal's record is good as he's only played one tournament off clay but he did beat 3 top 10 players then too (Berdych, Fed, Delpo).
Also interesting that Ferrer has only lost to members of "Big 4" - he's very consistent these days vs Tsonga, Berdych etc. though I'm not sure he's met them much this year.
Nadal won't keep up that record on HCs but it's not irrelevant to gauge the current level of the top players based on these stats...