I just got a job at a place that does batch interviews. You go through the process, then they tell you they want to do an interview. You get a text or email with slots available and you and every other applicant fights for one of 50 interview slots available.
It’s a competitive job so you have to click the link within 5 minutes or you don’t get a slot.
I missed the first one (slots were all full) but I got the second round. Came in with all the other applicants, did the interview, got hired.
It’s certainly degrading and dehumanizing to go through this process, but for companies who have tons of applicants, they can get away with it.