It's not 50%. 10% maybe. It takes work. Hard study. Reading .... a lot of reading. ATP/CTP, Indoc, and Systems classes all have a good learning pace that anyone can do. Starting in Cockpit procedures the learning curve goes straight up. You get 4 days to memorize FO and Captain checklists, callouts, and sequences. It's not that you can't learn it, it's just compressed into such a short time in the name of saving a buck. I read ahead on the syllabus and knew the expectations before I got there. I was practicing and memorizing weeks prior. Simulator training was also fast paced. It was recently lengthened from 2 to 3 weeks because most people could not get proficient in the 2 week footprint. Heck, in the 2 week model they were still introducing maneuvers the day before your checkride.

I had a small class, but 100% made it to the line. My Cockpit procedures partner was from a prior class and didn't make it through the sim. He had issues with the high volume of information and struggled processing at 250+ knots. My sim partner also was from a prior class. He had 2200 hours from a Florida flight school but didn't know which way to put his ailerons in a crosswind. He lacked some basic airmanship that was very evident in the sim. Those, and people who think the info is going to be spoon fed like Private Pilot ground school, are the people that don't make it through.

Folks are getting up to 4 weeks of sim time and 3-4 weeks of IOE to get through. The company is helping anyone willing to put in the work and shows promise.