Partly because it's in English, but also because I think Europeans on average know that a one-off event like this isn't a pattern, but I think Americans, who have zero high speed trains, are often blind to car deaths and might get spooked by something scary sounding that involves a train they don't have.

I'm not trying to convince the Spanish of anything, they already have a train.

because train nay sayers love the USA

To prove drivers in the us are more dangerous than in spain.