I disagree about Steffen and Udon. He has put in the time and brought horses up, and Udon was a quality, well-trained horse that was just as good as anything at the time. I saw him compete in CA, but I was impressed at the Olympics. Udon wasn’t the most exciting horse, but he was consistent across the board, like a 7 at least on everything. He just wasn’t an “in” rider at the time and was underscored.
And I think we have plenty of people who bring horses along through the levels. I’ve watched the west coast riders all ride all levels and train their own horses for 30 years–Hilda, Charlotte Bredhal (she has a GREAT story she told at champs about this), Steffen, Guenter, Leslie (both), Jan, etc. The field is deep. I’m not so familiar with the east coast riders, but there are more than a few that have proved their metal.
We just have a different culture which doesn’t support it and don’t have multi-billion dollar companies (Glock, Blu Horse, etc.) supporting our riders. They’re working on it, but so far it’s only been individuals. The lack of money relatively to support a whole system makes a difference. And, as by this thread, you can see what unlimited finances can do for you in the sport.