One thing to keep in mind is that Pancho picked Kramer, not Hoad, as the best player of all time in the interview five months earlier, with Arthur Daley of the NY Times.
"I never got to see Don Budge until he was over his peak. But there still was enough left to make me appreciate what an exceptional player he must have been in his prime. When it comes to great players, though, I don't know how anyone could have been better than Jack Kramer."
I just think that's a good reminder of how great champions speak about these things. They're not making exact lists, with great analysis and proofing. They're just sharing their reflections. In two interviews they can pick two different players as the best.
In fact Hoad's name does not appear anywhere in the first Times interview. That doesn't mean that Pancho never mentioned him in the interview, but it implies that if he said anything about Hoad it was brief or in some other way left on the cutting room floor.