I had plenty of "300 hour wonder" FOs while I was a Capt. They all came from MAPD, and could tell me about the systems and about flying. When it came to actually flying, though, they weren't that great. Heck, when I had 300 hours, I was still trying to fly the Seminole well, so flying a CRJ2, 7, or 9 has to be a huge challenge. "Back then," (as recent as December), most newbies were getting 25-50 hours of IOE. Now, as attrition at MAG spins out of control, the IOE gets longer ... and longer ... and longer. 87 pilots quit MAG in May; about half were FOs. As of this week Monday, 50 have left. It'll be another scorcher for the recruiters. Have heartbeat ... will fly. That is scary!
What's worse is the attitude that some bring in. A buddy of mine flew with a newbie in January who was complaining about how bad his sim partner had been and how little experience the guy had. My buddy, the CA, asked how many hours the partner had. The reply: 300. My buddy then asked the whiner how many hours he had: 400. Yes, apparently this 400-hour pilot is now an ace in the airline biz, looking down upon those loooowly 300-hour pilots.