I agree. They look nice, and they are certainly not hanging out of their dresses. I see much worse at the grocery store in terms of revealing clothing. It’s a shame those girls had their prom ruined by a busybody.
I have two daughters, one has always had large breasts. It was always difficult to buy any kind of clothes for her for that reason.
My wife and daughter both tell me that they have run into plenty of the male gender who don’t look them in the eye when speaking to them, no matter what they are wearing.
I agree with you that the dresses shown look ok.