These studies are exactly why my partner and I took psychedelics. We thought it was COMPLETELY safe and that nothing bad would happen to us. We thought all claims that mushrooms could lead to psychosis or death were government propaganda.
The risk is overstated but it DOES HAPPEN. It fucking happened to my partner. Two lives ruined.
I'm not saying psychedelics don't have benefits and that for most people they aren't safe.
But there is a minority of people for whom mushrooms in particular trigger delirium and severe paranoid psychosis which can lead to violence as the person suffering from it believes their life is in imminent danger and lashes out to "defend themselves".
It's important to know this.