CoC violations — particularly ones egregious enough to warrant removal from a project — often involve topics of a highly sensitive nature regarding events which could potentially reveal the identity of the victim party, which is entirely not appropriate. While I completely understand the frustration around the current lack of communication regarding this incident, it's fully appropriate given the situation at hand an…
It's also ambiguous as to if he was removed for a CoC violation. It just says he was removed "for cause". It then goes on to state (emphasis mine): "A Code of Conduct complaint was also made against Sonny Piers."
Weasel wording at its finest.
(1): Including, it seems, poster "isantop". Who is otherwise coming off pretty much as one of those secretive board members, here to defend their decision and procedures, so it's hard to think it's unintentional in their case.