Th next class was bigger until they found out no 175 positions were available so most of the guys scheduled for class denied it. They are waiting for 175 slots and losing seniority. Which is stupid. They were still offered DFW 145 if they wanted it, but they have SJS so bad they turned it down.
There is only 12 E175 FO slots open a month, the next class will offer 175 again. They have no issue filling 175 slots but can't just offer them to everyone all the time, obviously. We have other much larger fleets that need to be staffed as well.
Soon these guys will probably expect AA to give them 777 FO as new hires or they will deny it.