Is Bob Arum the true reason why Floyd and Pacman haven't fought?

[Vasyl’s dad]

Yes. Bob Arum is terrible for the sport of boxing. Pacquiao/Cotto/Margarito would have fought Mayweather if Bob wasn't around. That's why Manny makes hAlf of Floyds $ cuz of Bob. That said Bob has helped Pacquiao's legacy by picking careful fights.

So, since Bob was also Floyds promoter for over half of his career,

did Bob help Floyds legacy by picking careful fights?