A lot of people struggle with the speed of the jet and 121 ops combined. I've heard from others that are coming in as career changers or hobbyists that they can't keep up with the automation on the 175. Whatever it is you only hear the bad.... I've never heard an a LCA say, O man this one student was so good I could have signed him off after one flight. The long IOE gets regurgitated amongst pilots to push an agenda of making themselves feel better since they did it in a normal amount of hours.