DAR it was more a comment of the sausage factory mentality of processing the students
Thankfully I have always instructed in the enviroment that mrmum has described. While I was instructing full time I never had (and neither did a student or PPL) have an incident like as described.
This wasn't due to any particular skill on my part as an instructor or for that matter my collegues. It was just pure luck.
Or maybe it was the fact we always used to teach the book speeds for approach?