This is not as simple as going for a jog or going bowling this it hard competition which horses were not really made for. Yes certain breeds excell at the sport but jumping is not a natural thing for horses. Just like racing long distances and starting them at the age of 2 isn't nautral. People need to consider the horses health over all, especially if they want their horse to live a long and happy life.
Its not just about winning money and competing, owners and riders need to take into consideration their horse health and it should be a bigger issue than it is. And yes if I competed my horse that seriously I would have him vet checked before and after each show. I think a responsible horse owner should, if they cared more about their horse and less about how much money they are winning.
The owners of the horse lost hundreds of thousands of dollars if not millions when that horse tipped over in the ring
This is what I'm saying, people think to much about the money and not enough about the actual horse and it's well being. IMO