What exactly is that supposed to prove?
A character being simply “known” of in Kingdom is not an indicator of greatness on the level of Legendary Great Generals. Even regular Generals such as Fuuki and Rihaku are “known”.
So Man U and his comrades being “known” does not in any way put them on the same level as individuals such as a Renpa or Hakuki.
As I said before, Man U and his comrades are not “big players” in the context of Kingdom no matter how much one attempts to spin it.