If there was a serious incident, there would be a victim who could decide to go public. But that hasn't happened.
There could have been a trivial incident with no real victim, that escalated into a power struggle over if the mod team could censure a core team member.
But that's a pretty serious escalation.
Consider this scenario:
Alice: This code is retarded.
Bob: Mod action! Two day ban for saying a slur.
Alice: Lol no.
That's pretty trivial, but how do you escalate from there to mass resignation with none of the fight leaking?