She was recruited and did get an offer of support in EA which she turned down. She liked MIT but not significantly more than two other schools and decided that the certainty at somewhere she really liked was the best path for her given the acceptance rates at schools mostly discussed here on CC. In her case the coach said 2 out of 3 chance based on his experience and in the end she preferred certainty.
The key point that I was trying to make is that MIT does have RD supported athletes because many first choices don’t get accepted in EA but the positions still need filling.