Probably not, but they wouldn't clearly have stated the exact opposite.
What fact? That's speculation, as we've got no information to go on at this point. I get it, it may cause more companies to be exposed to the option, and yes they could become competition. But even if we follow that line of reasoning, that doesn't mean that much would change for the 'dealer group' as a whole at all - it could just weed out the worst, and introduce new capable people. Quite the opposite of the doom scenario some seem to want to paint on here that it would ruin C4's reputation.
But it's all still just based on speculation.
It's a prediction based on lack of information - doesn't mean you may not be correct in the end, but so could a fortune teller at the fair.
Any small business owner should. Always.