So there is this column here from Wofford from 2016 where he discussed what you’re mentioning (and I remember this well too!). Except below:
Then you have someone like Michael Jung who show jumps at the five-stars for show jumping and rides Grand Prix dressage and then comes out here in horrible conditions and puts his hands down and says, “I’m going to win this or die,” and Roxie flung her ears up and said, “Really? How cool is that; let’s go see what happens.”
I was watching in the TV production truck with all of these experts, and we all started groaning at the top of the hill because we knew what he was going to do. He was going to chase the time down through a related distance to a flat ramped oxer at the end, and he was going to hope he sees three fliers in a row. And he did. And if he had not seen those strides, and if she had not responded, they would still be picking him up.
He’s very confident in his horse, and he wouldn’t have asked for that if he didn’t know it was there in her. She just put her ears up and said, “Do you want to leave from 15 feet back at the last fence when we’re tired? Let’s see if that works.”
But then in his 2017 recap, he also talked about how scrappy Jung had to be that year:
Michael Jung, I have never seen him have such a sketchy round. There were 44 efforts, and easily 25 percent of them it could have gone wrong. Roxie is just wonderful.
I can’t explain it. He just did not have a good day, and he said as much in the post-ride interview. I love that about him; he’s very matter-of-fact about, “My horse really saved me,” or, “Well, it was just not our day, and we got it done, and I’m happy for her. She’s a wonderful horse.” That’s all true.