I agree, but if the coater is really good it can turn out well. After all, some body parts on modern cars and trucks are in fact powder coated. Some electrostatically wet painted too of course, but some with powder. Not sure what the decision process is for what part gets what, but I was kind of surprised when I heard about that the first time.
I might worry about the panel warping under the 400 degree heat for 20 to 30 minutes, but even that does not negatively effect every flat panel. I would think it's structurally capable of handling the heat. But i don't know that for a fact.
I could understand wanting that panel to be more scratch resistant though, which powder does seem to have the advantage with.
Not really sure which way I'm leaning then, but when in doubt I have no problem with regular old automotive paint.
Paul