By"better spent" I meant: the rigger who fought with this impossible mesh could have been working on something that would have advanced his own projects instead of giving of his time and talent to create a re-rigged, weight-mapped figure mod to offer to the community for free, a community who were begging for this figure and now seem apathetic about her. And critiques like yours would have been much more useful during the debugging phase of this project. None of us on the project ever thought to contort V4 into that particular position. I would have never thought that particular pose was so popular or so critical to success.

Have you logged a bug report about this issue at Poser Place?

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks