Come now, 43I, it all makes sense in the CASA aviation safety universe.
That universe knows whether a PIC is sitting in an aircraft of which the PIC is the registered operator or is instead sitting in an aircraft of which the registered operator is a corporate entity. The universe knows that the objective risks are different.
When the PIC is the registered operator of an aircraft, it’s safe for the PIC to carry any number of passengers provided the PIC is not paid or rewarded for being PIC.
But as soon as the PIC wants to fly an aircraft of which the registered operator is a corporate entity, it’s only safe if the aircraft has a maximum seat configuration of 6 including the pilots seat. It’s safe for the PIC to be rewarded but not remunerated.
You see, if the PIC is the registered operator of a PC12 it’s safe for him or her to fill it with pax and go, provided the PIC is not paid or rewarded. However, if the PIC sells the PC12 to ABC Pty Ltd and ABC Pty Ltd becomes the registered operator, it’s no longer safe for the PIC to fly it, even with only one passenger.
You know it makes sense. (A very deep draught of CASA Kool Aide helps )