Great piece. However, the general tone of this article still shows some of the stigma towards psychedelics that dominates the official discourse. 
Both LSD and psilocybin have a low dependence potential in comparison with other drugs, such as alcohol or tobacco and they score really low in terms of Harm to Users and Harm to Others (You can check "Drug harms in the UK", by David Nutt et al. (The Lancet)).