Aha! So they don't like the extra work. I wonder if that is part of the problem! These teeth are a pain to deal with. I wish they would be more impressed with your ability to clean them rather than complain.
I think the issue is that a lot of times they get impacted, where they are basically sideways cramming into another tooth, and it's a lot easier to remove them before that happens than afterwards, which means dentists tend to be really aggressive about suggesting they get removed. One of those situations where you see the problem a lot so you think it's a bigger deal than it actually is. Like someone that works at a car dealer saying that every Whatever is crap because that's all the work on, despite it statistically not being worse than any other model.