I don't see anyone replying to you here, and I don't know what your background is in this, but I think and hope you're spot on here. The more I've read replies in this thread the more I think this is mostly regulatory and maybe slightly a hardware issue (hardware issue is that there needs to be some kind of plug on an electrical panel that would remove the risks of having to pull the face off the panel, install a new breaker and connect the inverter).