People are getting offers for feedback? Every time I have asked for feedback I get met with nothing. Like, how am I supposed to improve if I don't know what is missing?
I've been on a bunch of hiring committees (for mostly not purely technical jobs). And a lot of the time the discussion takes the form of "eh," "not feeling the love," or "we can probably do better." Usually it's not about alarms blaring or red flags going up or some specific skill set missing. (To be fair, the jobs I've been on committees for usually involve a lot of interpersonal relationship skills rather than a specific set of technical requirements.)
That's not always the case. "Your writing sample was poor" so take a writing class. But I'd say that has been the minority and I could name one mistake where I assumed that was a flaw we could fix.