The Quality of Horse does not really protect him, sadly.
Ask Dorian about how being young, big, attractive, sound, smart and well trained doesn’t make a person give you enough to eat or not ride you in ill fitted tack until one’s body bleeds. . .and aches.
The truth is a lot of very nice horses end up neglected because, fact is. . .people are not always nice.
Dorian is rehabbing with Heart of Phoenix now, and he is one of many horses that have come through for no reason other than. . .a person or maybe many people let him down.
Do not judge a horse for ending up in a rescue.
The fact a horse ends up in need of rescue just means some person failed a horse. It rarely means a horse failed a person in any manner at all.