She did, but the fix to the problem wasn’t an unreasonable one and it was a public airline with tariffed guarantees and they never have to guarantee a seat. Turning the shirt inside out would have sufficed.
Airlines haven’t filed tariffs since the Civil Aeronautics Board was abolished in the ‘70s. When you buy a ticket you have a Contract of Carriage with the airline. You pretty much follow their rules or you don’t fly. If you are particularly obnoxious, an airline is free to ban you for life.