Been going successfully for years Dick. Decades. In many first second and third world countries. Its been done here for years. Its all a function of training. Just as it was 75 years ago when my dad was given command of a Lancaster with but 300 hours.
Minimums for all seats in the cockpit are set in Part 61. It was open to public consultation.
As as far as I know no link proved beteeen RHS hours and overall safety. The opposite has been shown often. Two very experienced pilots each assuming the other knows what he/she is doing.
if the real barrow you’re pushing is Death of GA =Victory by Evil CASA = Less Safe Airlines. Sorry Dick. Once again you’re out of your depth and wrong.