I appreciate your point but if they put it in the terms then if you join then you agree to the terms, cast 'em into the wilderness I say! Just because you're big doesn't mean that you have the right to rip people off and offer shabby overpriced systems.
Just imagine, they could be the first credible consumer focused regulatory body, that would work well for an emerging renewables market.
It's not like any of these big firms have taken any risks in order to take advantage of the opportunity. Most small businesses in this market have taken substantial risks to get qualified, buy tools and equipment and finance installations. It shouldn't be a god given right for big business to move sideways to steal market share, fine if they abide by the rules and act ethically but if they don't then burn 'em!