It is the perfect combination of crap.
Cyrille Rossant may save a lot of lives, in both parents and children, if this becomes common knowledge.
How did you determine them to be credible?
My assumption is that any citation to a rumor should be totally dismissed if these questions can’t be answered.
“How it was said” was literally presented as unsubstantiated rumor. It’s not worth reflecting that when someone says “I heard a rumor that X…” it sounds like an unsubstantiated rumor. It’s just the basic structure of English language.