It's just ridiculous though. It's a shitty trend that's filtered down from social/dating applications. A decade ago, I always got a follow-up rejection email. Sometimes it took months from bigger companies but it still came. Today: more often than not you're just ghosted.
Milliennials now being in positions of power are 100% to blame for this. They see no difference between the conversation with a job candidate and that of the girl you fucked last week.