I think the key to getting past these incidents is to accept your assignor's decision and support him/her in it. Reiterate to your assignor that you harbor no ill-will towards the team, and that you have no passionate feelings towards what happened, one way or the other. We're professionals. We have no passion or prejudice for or against anything, other than making sure that we do our jobs well, day in, day out.
When you eventually meet this team again (and if you call long enough, you're guaranteed to do so), make zero mention of the events of the past. Don't bring it up, don't allude to it, don't even hint at it. Just walk into the dugout as a professional to do your bat and equipment inspections, keeping a positive (not cocky) and approachable attitude. Leave any chips on your shoulder in the car.
Teams are fickle. One day, they love you. Next day, they hate you. Next day, you're the best umpiring team in the entire crew. Life will go on.
