I haven’t read the original research and only skimmed this, but given the times we live in I think it is important to remember bias goes both ways; I would expect some fairly obvious critiques are overlooked.
No reason to think that women couldn’t use a sling (Clan of the Cave Bear anyone?) for protection or to get the occasional rabbit, but that doesn’t likely mean gender neutral hunting parties ranging widely for reasons that probably are ignored. Still, it is interesting
And it begs the question, if women were doing everything what were the men doing? Figures it would be something like this