So if the general idea is that there are too many low-time instructors, and they don't make good pilots, why isn't the accident rate much higher? Also a conclusion would be there aren't many good pilots because 80% of the instructors are low-time (initially)
This is complete bogus!
Low time instructors passed the test (government standard) and so they're supposed to know how to teach and to fly. Perfectly able to teach PPL. Then government standard tell when you can start teaching CPL or even FI. In the US this is not true but there aren't that many flightschools allowing 200hr instructors to teach CPL let alone do full-down autorotations.
I much rather hire a guy who build up his hours by instructing 2 years (or less) to get his 1000 then someone who's been sweeping the floor and flying every now and then for 5 years.
The whole hangar rat idea is ridiculous, just cheap labour. And has nothing to do with learning the industry from the ground up. Hands on experience that's what you need 'stick time' not 'broom time'.