Speculation but maybe a training contract he’s locked into? Not uncommon to see some of these slimy 91/135 operators putting people under $50k+ repayment contracts if they leave before a year (or two or three) is up. Not quite the same as holding out for a bonus but also goes to why accept an interview and class date if so?

Personal opinion but even shelling out $50k to break contract for an additional 6-9 months of seniority and future earnings is more than worth it.