It's scaremongering to the "nth" degree, by regulators and industry who are reluctant to change.
This is perhaps the best and most pragmatic review of the type of installation and how UK regs presently resist it.
EFixx video
The biggest stumbling block is not the regulation, but return on investment. This needs to be installed with battery storage and "load shifting" of consumption to make it viable. These proposed installs will be a max of 4 panels and 800w returning to grid.
Nothing to stop you plugging 2 or 3 systems into the home circuits, but no matter how you look at it, solar's only available when the sun shines, in practice its going to be years for payback of the investment.