Hi,
This is not contradictory, it is logical.
On the one side, there is the government. Let's say that they are against bitcoin, then they have to implement a legislation. And it is quite long to write regulations and even longer to truly put them into effect.
On the other side, there's a car dealer. He wants to make people talk about him? He is selling luxury cars, he has money but he wants something truly striking. Making such a promess is orginial, striking and maybe attractive.
Total: logic on both sides!