@hrefna@LiquidParasyte the grading as "low quality" is ok - but discarding low quality evidence in absence of enough "high quality" evidence is not best practice in evidence based medicine. They were cherry-picking parts of evidence based evaluation frameworks.
Also it seems the moniker "low quality" was deliberately used in communications without clarifying that it means something different in a scientific medical context than what people would infer from the wording.
And still - their idea of the "high quality" research which they would request to be satisfied is unfeasible and unethical.
So I don't think it can be considered reasonable in this case.
I agree that even if it was reasonable they are completely dismantling their conclusion by suggesting alternatives which in no way are held to the same standards. (Often suggesting interventions which are based on no evidence at all, except hearsay.)
hrefna