WHO at the time was saying that don’t wear a mask, because you can lead to a false sense of security, and then you probably wouldn’t wash your hands as much. That’s the main problem of that. They are not wrong. It’s the same research, you just interpret it in two different ways. You either say you don’t trust the citizens, so don’t bother with the masks, or you say you trust the citizens, so wear a mask to remind yourself to wash your hands, and we chose the latter to a very good effect.