They're still people with valid medical licenses - the pool of candidates wouldn't have people who couldn't legally practice medicine, so I'd assume the qualification criteria they were being assessed on is unrelated to their ability to not accidentally kill me on the OR table.
Hopefully not unqualified, just not the "best" available
People get rejected because they are not the best fit, not because they are unfit.
While this may be true, (but someone has to be the lowest scoring one - it could've been a group where everyone is great) keep in mind it was a list of candidates who are aware of their lowest scores, getting a training position in a place aware of their lowest scores, with 5 more years ahead of them. It sucks that it happened, but I think they'll be under extreme scrutiny/pressure now.