I want to emphasize, that this isn't really about trusting magic, it's about people nonchalantly doing ridiculous stuff nowdays and that they aren't held accountable for that, apparently. For example, there were times back at school when I was "accused" of cheating, because it was the only time when I liked the homework at some class and took it seriously, and it was kinda insulting to hear that there's absolutely no way I did it, but I still got my mark, because it doesn't matter what she thinks if she cannot prove it, so please just sign it and fuck off, it's the last time I'm doing my homework at your class anyway.
On the contrary, if this article to be believed, these teachers don't have to prove anything, the fact that a coin flipped heads is considered enough of a proof. And everyone supposedly treats it as if it's ok. "Well, they have this system at school, what can we do!" It's crazy.