Yes that is true that it is a politically safe thing. While it is not the reason they are doing it, I think age does play a factor. A disproportionate number of people in the U.S are middle aged. They are the ones that grew up being told to be scared of snakes. I am not at all saying that everyone in that generation is afraid of them, but a vast vast majority are. I guarantee if you were to line up 1000 20-35 year olds and 1000 45-60 year olds, a much larger percentage would have an aversion to snakes in the latter group.
I know that is there agenda, but I guarantee that will never happen. That would turn the U.S upside down and 180 degrees. People really love their pets.