According to what I've read it was actually already the law that they weren't supposed to license businesses to sell cars unless the business was a dealer, but the MVC hadn't actually adopted the regulations to enforce that law. They've been discussing doing so for some time, but Tesla has opposed it, which is why Tesla is brought up specifically. All that happened was an administrative agency adopted regulations to enforce the thing that was already the law passed by the legislature, but news sites are making it some thing against electric vehicles for clickbait.