Why did i get banned

So i was playing a round and became imp with maroon and green. A crewmate, Red reported a kill green did in o2 but the meeting ended with a tie. After that i called Reactor Sab and it got fixed and when i was going to comms me and maroon went after pink. Maroon killed pink and we won. After that, in the lobby, the host (which was rose) decided to ban all of the imps for no reason. So why did rose ban me. We didn't even kill Rose.