> On the other hand, it’s interesting and perhaps illuminating to people working in that field

I responded to your other comment with this exact text, but to repeat:

This paper is not illuminating to people in the field. This is 3 unaffiliated people who paid to publish an anecdote without any supporting evidence. Paid medical journals are full of these.

Medical professionals know how to spot these claims because they’ve seen a hundred of them over the years that went nowhere. This was published not for the medical establishment, but for news media and social media and maybe to boost the author’s visibility to get funding for something they want to do.