In the other thread you actually used "Wimbledons and USOs" as a metric for Federer in a Fed vs Novak argument. 1 USO is very weak for someone of Novak's caliber on HC. You're just arguing to argue.
You see things too black and white.
Everything is HC, you can't divide it to USO or AO or WTF, it's all HC, so it's irrelevant.
You can have 10 AO 0 USO or 10 USO or 0 AO. Same thing, if we use the logic that it's all HC.
Djokovic has only 1 HC slam less than Sampras. You are doing a fallacy using HC as a surface, then at the same time contradicting yourself and counting it as two surfaces and use it against Djokovic.
If HC is the same surface, who cares if you have 5 AO + 1 USO or 6 USOs or 6 AO? Same thing.
You could argue that AO and USO are different surfaces, then you can argue that as an all time great, it's pretty bad for Djokovic to have just 1 USO, 2 W and 0 RG off his best slam.