Maybe its known among players and agents and they are keeping quiet so that their clients don't get caught up in any backlash by the other owners afraid their dirty laundry will be made public just like Sarver.
It's probably why PHX hasn't been able to land high profile FA's the last few years, its probably an unspoken rule not to sign with PHX because ff the toxic culture.
Take out all the ex employee interviews, what speaks volumes is there are current employees including a co owner who is on the same level as Sarver validating claims.