Annoyingly misleading title. From the article:

Lilliputian hallucinations predate this mushroom. There are myths about tiny people in pretty much every culture's folklore. People have also reported these hallucinations from alcohol withdrawal, dementia, macular degeneration and other neurological conditions. So, it seems like this phenomenon is fundamental to how the human mind and brain work, but we don't know what causes it or how to treat it.

That's what makes this mushroom different — it reliably produces this effect