I tend to think that its natural selection at its best. Not exactly playing god, since the deformed fish are destined to fill the stomach of a breeding pair of Belanoperca pylei (which can potentially be a breakthrough in the breeding of this fish).
Personally, I'm not a fan of designer clowns too. But it does makes sense to me to fork out a sum of money for a frostbite clown, which is carefully cultured and bred from a single specimen with unique markings after several generations of selective breeding(imagine the cost of running each hactchery and the time taken). Its the same case as to why some pet owners would pay for a guinea pig or a short-nosed cat. Afterall, this keeps the market running and we all know when there's demand, supply would follow.
Like it or not, humans have been "playing god" since the start of time. If the entire industry is dependent on "beautiful,wild caught fishes", I would doubt the long term sustainability of it