Jim McLean and Alex Ferguson were what could be described as abrasive characters. They were also successful football managers. There are numerous other examples.
Clearly, none of us want someone who is an abusive arsehole at the club, however Flynn is a mature, experienced player, so it would be hoped he could formally call anything too untoward out through the established channels. I acknowledge it is easy for me to say, and definitely more tricky for younger players and staff.
Tittle-tattle can be corrosive, though, and I wonder if Flynn would appreciate his mate sharing this stuff with random folk at parties....