LogFAQs > #978592588

"The new trend 'legging legs' is problematic as it suggests that only certain body types are able to wear a piece of clothing an idea that promotes the appearance ideal we have all been exposed to and whose internalization may put people at risk to develop an eating disorder," Altunkara says.

the trend doesn't specify the exact standard for what defines the "legging legs" category

kinda makes it seem like they are making things up when they say it promotes certain body types or promotes unhealthy body image
maybe people using that term just want to see women wearing leggings despite the body type