I think this is a good thing: Peggy purposely borking her texture maps.
Peggy's mapping has always been pretty atrocious. I retexured/realphaed one of her
old pay bobs for a Secret Santa gift last year (yeah, I know there are other bobs out there, but the person had a 1920s themed hood, and I wanted to give her MOAR BOBS that she definitely didn't have before), and it was nearly impossible to give that thing a blunt cut because of how it was mapped.
It ended up looking
decent, because it was short and my end goal was
easy, but it took a lot of fiddling around.
So I'm not entirely sure that this latest mapping is
malicious instead of a result of more Peggy "What gap?" nonlogic.
And while I get what you're saying about editing other hair instead of Peggy's, every hair that exists tends to get the retexture treatment over at GoS these days. It's less "OMG MUST RETEXTURE PEGGY HAIRS" and more "OMG MUST RETEXTURE ALL HAIRS."