The title is misleading. “Improvement in advanced Alzheimer’s disease following high-dose psilocybin” sounds like results from a broader study, not an anecdotal report.

There’s a reason the article includes “a case report” in the title.

It might be inappropriate for the target audience because they might mistake the treatment for the protocol, but it's not trying to be misleading I think. In any case the title got editorialised which I think settles this.