It may be relevant to you, but not the schools?
LOL. I guess, but then, why would any admit rate, other than the school's own, be relevant to the schools. The statistics give us benchmarks against which to measure ourselves, and give you numbers to throw at us when giving advice (seller's market, lucky if we receive any As, 60% failure rate, etc.). I, for one, would love to know what the 60% one year failure rate translates to over the long term for those applicants, because that would provide a much better, truer measure of what percent of highly motivated applicants are ultimately unsuccessful.
If it were true, as a first time applicant I would find it highly relevant to know that the pool is 50/50 first time applicant/reapplicant, and the 43% accept rate is really 56% first time/30% reapplicant! (Note: those numbers are just made up as an example!!!) From what I have seen, it looks like the real numbers are closer to this than 43% for everyone.
Again, given how much data AAMC collects and disseminates, why is this such a well kept secret? The reapplicant admit rate is irrelevant, the percent of applicants who are never successful is irrelevant, but each and every data set they publish in "2019 FACTS: Applicants and Matriculants Data" is not? Really???
Since I started this thread, I went back to the only data set that I have access to. This UG does not publish reapplicant data (it seems like nobody does), but they do break down outcomes by number of gap years, which might be a loose proxy for being a reapplicant beyond a certain point.
Interestingly, while one can argue that reapplicants have an opportunity to make great improvements, it is also true, if the process is not random, that reapplicants are reapplicants for a reason, and, if so, it would be expected that their accept rates would be lower than random first time applicants. For this one school, admit rates for applicants with between zero and two gap years are remarkably similar, and the number drops by half after that.
Of course, one could be a reapplicant with one or two gap years, but it is much more likely with more than two than with less, and it's probably not a coincidence that the admit rate drops precipitously at this point. Why is this irrelevant data such a secret, and why isn't it published along with all of the other irrelevant data made available to us by AAMC?