Col Walter,
It's not about the companies responsibility to put a pilot in the right hand seat who's trained to do so, it's their responsibility to put a PIC in the aircraft, whether he\she be in the left or right seat is irrelevant, ultimately the PIC is responsible for the safe conduct of the aircraft, it's just like trying to blame the Autopilot for not holding altitude in CTA.
for all intensive purposes the ICUS pilot is the autopilot, as a PA31 is a single pilot approved aircraft.