It's an objective comment on your subjective opinion of an N=1 result. You are free to share your opinion (and I may even be inclined to agree with you) but it holds no scientific value.
N=1 is perfectly relevant to an individual occurrence when the N and the event in question are one and the same. If I kill myself with a hammer n=1 hammers were fatal to use in my case. I don’t see anyone asserting that this means that broadly ayahuasca is dangerous or claiming scientific relevancy.