You forgot to factor in luck as well, luck of the draw, and luck of the scheduling.
I can easily find some M1000 draws that are legitimately tougher than 3 out of 4 Nadal's US Open draws in which he won. 8-B
20 slams > 17 slams + 3 glorified ATP 250s.
What does that mean lol?
So FO and US Open are Djokovic's two weakest slams, and USO is Nadal's 2nd best.
Nadal has three titles combined at his 2 weakest slams, while Djokovic has 5 at his second best.
And Novak has to play 3 more editions and win them (he's not going to do that) to surpass Fed's current total, provided Fed doesn't add more.
I don't think Fed's consistency at the AO gets enough credit tbh...
Ofc he's not intersted in it because Roger isn't the one with the record in that department, even though YE #1 holds more weight and is more difficult to achieve.
Noel is just rubbing it in in Fed's face.