and they are only released to fly without safety after a incapacitation flight, a flight where the instructor and the safety play dead after gear up and the rest of the flight is done single hand by the cadet.
What a wonderful world. Dream on baby. If the XAA's imposed such an edict then bravo, but that is not the case. Now try a real scenario as imposed by some airlines. CAT 3 approach is planned & briefed. During approach the captain goes awol. F/O make G/A as per SOPs' and diverts as solo crew. Every where is socked in and not a lot of fuel due to minimum fuel + a teaspoonful policy. Divert to alternate that is CAT 1 + a bit. Interesting scenario, but was it tested? I doubt it. Winter's coming.