Aerials is a dying sport. I believe the Canadian team only had one qualified man to send to this Olympics, where Canada used to be a powerhouse, there just aren't enough people focussing on it to keep it sustainable. As countrys like China who pump out gymnasts from birth, then teach them how to ski it kinda doesn't matter anyone. It's such a precision sport its really geared well to people with OCD, well suited to the Chinese perfectionist.
It does take huge balls, but the regimented lack of creativity is what killed it. Put slopestyle next to aerials and there's no contest which is more entertaining to watch. Skiing evolved, eventually aerials might even go the way of ballet, or acro as it was rebranded in the 90's.
I personally didn't ever think people would be doing switch triples as the contest norm, I think they've set the bar almost too high now when one bad take off could spell disaster for someone.