I do not think that AJ has a transfer switch that establishes a ground before connecting the shore power to the bus. As soon as he plugs in to a cheater the GFCI will pop.

I also do not think he has an adjustable inverter that he can program to share loads.

Different generation buses have different capabilities and I think yours Bruce allows you to tell the coach the power available and the coach then manages the loads. That is not the case with older coaches or even coaches from all converters.