Or, maybe it had been a slow burn annoyance that was let go for awhile because, for the most part, people try to be polite and not rock the boat. Then, it finally hit the limit and polite turned to not polite. If that: Fair? Not really. Understandable? Yeah.
Sounds to me like both parties could've handled that flash point better. The only difference is one had the ability to boot and did so. I'm loathe to say "sucks to be you" because it comes off as rude and that's not how I want it to sound. So, I'll say it didn't go your way, you felt slighted, but in the end it was out of your control and not worth letting it harsh your mellow.
Maybe next time a quick "Hey, I use group flight but a quick trip to Null the Gull in Pocket D can stop it from affecting you". Heck, you might even teach a newbie a thing or two and quickly squash someone getting bristley 3/4 through a TF.