Because those "governors" need to first ensure that their grids and home electrical systems are equipped to handle a solar system pumping into the house power system.

You speak as though that were a bad thing. I'd rather not have people accidentally burning their houses down.

Once it's approved for an area, you go to your local shop, buy an approved PV system, and plug it in. No fuss, no worries, and your insurer must cover it.