Personally I don't really like-like Huey but a lot of the TW he does is unintentional and shouldn't be held against him. He's a very aggressive cavalry player, and as a result, he gets more TW's than other cav. Proportionally, he probably gets a lot LESS to the damage he deals to the enemies, because he does just that.
Yeah, though, lots of players go on rampages and deserved to be banned, if they won't cool off by choice, well, I think it's clear the choice that should be made there.
Also what server/game mode was this on? In what server is he an admin? If it was his own server I don't think he should be banned..