> They pushed for a retraction ...
That's not right; retractions should only be for research misconduct cases. It is a problem with the article's recommendations too. Even if a correction is published that the results may not hold, the article should stay where it is.
But I agree with the point about replications, which are much needed. That was also the best part in the article, i.e. "stop citing single studies as definitive".
I will add it's a little more complicated than I wanted to let on here as I don't identify it in the process. But it definitely was misconduct on this one.
I read the paper as well. My background is mathematics and statistics and the data was quite frankly synthesised.