Again...broad blanket statement. Too many variables.

I've seen Flight Safety pass NetJets pilots who would probably have received retraining (or more) at airline "in house" training. The two training worlds are not uniform, so it's very difficult to judge. While FS does a good job, it is a contractor to NetJets. I think there's a bias to pass a student so as to not cause a "situation".

Maybe not, but your statement would be hard to prove, or disprove based on very limited data.