What a sad day for British Dressage! Carl Hester, who has supported and mentored CDJ for all her career, would not approve of any cruelty to horses and the UK has been leading the world in producing horses that are "happy" athletes rather than tense and unhappy in their work.
The movements performed by Grand Prix dressage horses are all based on what they can do naturally, to suggest it is unnatural is tbh total rubbish. My Hanovarian mare could passage and piaffe from the day she was born but training her to do it under saddle with the lightest of aids was the challenge, same with extended trot and canter, horses do tempis naturally but having the strength to do eleven of them one after the other is about training and acceptance of the aids.
Horses are totally wonderful animals and I am so privileged to have spent my time with them but there are people who treat them badly and I'm totally up for exposing them, there are also people who think horses should not be ridden (under any circumstances). I struggle with that tbh. We've domesticated horses, they no longer roam the plains and let's be honest, if they don't have a place as ridden equines they really don't have much of a future except as animals in a zoo. I speak from experience having owned, trained and competed dressage horses, it is not an inherently cruel sport but some people are unprepared to put in the huge amount of work that correct training requires and some are just totally inexperienced and the horse suffers. I'm fortunate to have watched some of the best trainers in the country and also trained myself with them. I can honestly say that I have only once felt uncomfortable about the training I was receiving and being a bit old and very bolshy I had no problem in ending the lesson and getting my money back.