Yes and no. Starocci may have been toxic, but Cael was able to manage him and still win multiple national titles.
Yet teammates were still complaining about the toxicity. Maybe cael managed it or maybe he did not manage the toxic behavior and the team had so much talent they won in spite of it. It would be like the football team having twenty more 5 stars. The wrestling team has 5*s backing up the 5* starters.
I see plenty of toxic behavior from some extremely talented teams that win. Georgia football is one example.
Ps. The psu wrestling team had enough team points to win without starocci