Not sure how legal this is (the giving insights into your internal processes to a stranger part) but since there are no trade secrets involved I'd imagine it's quite safe.
As I said above, it can be really bittersweet knowing the details but I'd advise you to strive to show maximum sympathy -- including contact them privately and let them know what and why happened.
It's a little comfort for somebody who is about to run out of savings to hear "sorry that our process is so effed up, dude, and best of luck in the future!" but I can assure you that it helps them make peace with that past further down the line.
As I said above, it can be really bittersweet knowing the details but I'd advise you to strive to show maximum sympathy -- including contact them privately and let them know what and why happened.
It's a little comfort for somebody who is about to run out of savings to hear "sorry that our process is so effed up, dude, and best of luck in the future!" but I can assure you that it helps them make peace with that past further down the line.