American Airlines ramp

I recently interviewed with American Airlines ramp. There were multiple interview groups (probably around 20–25 candidates ) for about 8–9 openings. I’m honestly trying to understand how they make decisions because from the outside it doesn’t seem very clear or consistent. Some candidates who dressed very casually and seemed to have less experience received offers which makes me question how much experience, presentation, or timing actually factor into their decisions. Is their hiring process actually structured or is it more of a numbers game where some people just get lucky?