Interesting, I didn't know that history. I realize that a lot of men's peacoats stop at/just below the belt line but I've seen plenty of overcoats called peacoats which go down to mid-thigh or near the knees. Maybe they weren't properly named, Idk and to be blunt I don't really care.
Threads like this always hit a bit of a nerve with me as everyone inevitably enters saying "You have to follow random fashion rule X otherwise you won't be seen as professional". Which I honestly find to be a pretty pathetic mindset when we're supposed to be gauging applicants on their qualifications as a future physician, which last I checked didn't involve fashion sense. Personally, I didn't and don't care if med school/residency applicants show up in ski jackets or a leather jacket if they're wearing a professional suit (notice I said professional, not fashionable).
Imo if they're at least trying to appear professional where it matters then I'm not going to hold it against them if they wear a black suit or where brown shoes with a black belt or a ski jacket to an interview when it's 5 degrees outside. There's far more important things applicants should be focused on than whether they're wearing the right coat to shoes to an interview.
I'm mostly just venting with this comment, not attempting to attack anyone or be overly critical. I've just found myself becoming more and more annoyed and jaded with the process as we talk about finding the best and brightest candidates while simultaneously judging them based on criteria that are irrelevant and then extrapolating their future success and abilities based on an impression from a 30 minute interview that is supposed to represent all of who a person is.