"What these folks on here dont realize is everyone is not super pilot that can just hop from a piston airplane to a RJ with all the gadgets and whistles and keep up with the flow of airline class."

The airline ground schools are set up so if you pay attention and have a good attitute, you'll do fine. That said, you have to bring a certain amount of experience and competence to the table. If you have 1000 total and are an active CFI, I wouldn't worry about it. If you have 300 hours and never been a CFI or had a job as a pilot before, I'd say you'd need to take an RJ course if you expect to get through 121 ground school.

But that begs the question, if you need to take an RJ course to get through 121 ground school, should you even be there in the first place?