I think that was a rhetorical question (if that's the proper phrase).

I think the point was, try to get hired ASAP at a company. Don't put off the class. You get off probation earlier, you have more seniority, etc.

I did it at my company. When they called to offer me a class, I turned down TWO!!! One was to give my previous employer two weeks. The other was to go on vacation in HNL which was planned for a while with my then girlfriend (now wife). Why not ? They were hiring like crazy, and upgrades were fast because all thge majors (legecies, whatever) where hiring!
Came back and nipped my butt. Seven months after class start 9-11. Everyone that was hired in 2001 was furloughed (me). If I took one of the previous classes I would have snuck by. Back now, but in right seat, and those who were in the classes ahead, are LEFT seat!
So get in when you can!
Also, give two weeks when you can. Once I was furloughed, my previous company (Colgan) found out, and offered me my job back if I wanted because I didn't "screw" them like some others who left. I was only furloughed for a bit, so declined politely.