Don't expect me to comment on this paper until you demonstrate that you have read my post
#341, especially why you consider unquantified heterogeneity to be "a problem", and why the issues I raised don't apply to this paper.
Recall that I said:
Overall it appears that you use statistics as a drunk uses a lamppost — for support rather than illumination. If I see signs that you are moving goalposts, or trying a gish gallop, or evading my questions and comments, then I'll stop engaging with you - I value my time above your approval.