[Dildo Shwaggins]

Didn’t see the barrel.
Anyways, if you don’t call the barrel out to where they are aware exploding it and them is still rdm even if you didn’t mean to. They do need to be aware.
Unless I’m missing a piece of info here

Yeah, this, I think it falls under accidental RDM.
That being said, if another staff member was handling the report and removed the slay, then it could just be a case of a slay was possible but for whatever reason they didn't decide to go through with it. 
Either way this is a lot of drama for one slay and I think the best case here would be for both parties to drop it and move on