It’s almost 100% because they were in violation of at least some of the content policies found here
It’s just that the Fediverse now has enough global attention being paid to it that they’re probably actually cracking down on enforcement. Probably something under the “Insults” or “Racism” content policy, since those are the most vague and poorly defined and highly likely to be “obvious” primarily to the country who is operating them, Mali.
Historical legacy. It made sense when they were first rolling out. Someone would take the risk of trying to build up a market for these really expensive new devices and then the factory would swoop in and undercut them and destroy their business after they had done all the initial leg work of creating demand for the vehicles. They wanted protection from this.
Well, cars are now everywhere in the US market and it doesn’t take a whole lot of effort anymore to convince someone they need a car, and not just a horse. But the laws protecting “car market development” in the former of dealerships never went away.