I think people don’t take that into account. If there were actually lots of people saying they were getting removed from dungeons all the time then that would be a clear indication there is a problem with the system.
Most of the people who come to complain about a kick on the forum are letting off steam because they feel they were unjustly removed, in most cases it’s happened infrequently. It feels good to vent, some do it at friends/guildies etc, others will come on here.
We also have to take into account there are two sides to every story. Sometimes when one person claims they did nothing, there is a group out there who disagreed and felt they needed to remove them for just reasons. That’s not to say unfair kicks don’t happen.