You could say the same for copper bands, Achilles tangs, powder browns, leopard wrasse, morish idols, etc.
What happens to all the fish that come in. over 1000 fish a month come in and we have less than 200 hobbyist. Most fish die. even the basic coral beauties.
Powder blues, Achilles tangs, powder brown don’t have any scales so they get white spot easy.
Problem is that most powder blues might have been cyanided.
I think if you have a well matured tank they should be ok.
Water quality is the key to success.