I agree. However, as I have often pointed out, Rosewall's dominance in pro tennis came after Kramer, Gonzales, Hoad, were past prime, and Laver soon was playing at a higher level than Rosewall most of the time.
I believe that Rosewall was a fully mature player at the latest by 1957, when he won Wembley, but he lost the biggest matches of the late fifties to Gonzales and Hoad.
So perhaps it is not really surprising that the players of that era would take this ratings with Rosewall below some others, and, actually, Laver rates Rosewall ahead of Vines, Riggs, Crawford, Newcombe, Sedgman, Trabert, Segura, Santana, Emerson, Gimeno, Schroeder, Parker, Drobny, so that is a very high ranking.
The only strange ranking is putting Perry so high, but Laver did not see Perry at his prime, and is probably going by the number of titles which Perry won.
Rosewall's ranking often benefits from assessing number of titles, but that is a fairly superficial criterion.
Your "1957 Mature Rosewall" is one of your most absurd claims at all!!