I agree that a US style 1500 hrs limit would slow the que of people ready to pay for a rhs. Force a raising of conditions.
I also agree that the only way this will happen will be via a major accident.
I hope it never happens!
I know it is possible for anyone to make a mistake, but I am also aware of several major cadet led incidents, ie, they just didn't have the experience or knowledge to avoid a relatively simple and obvious error.
I used to work for a company whose training captains said that the company was scared the most at the prospect of a major accident. It would simply be the end of the company.
Unfortunately since then the skill standards have fallen with the introduction of the MPL. Mistakes have already been made by these volunteers. Computer skills and enthusiasm are ok but there is a major lack of aircraft handling skills. That came from the training captains too.