Yeah, I actually have to agree with Shlucah’s point. When girls are wearing miniskirts or pants and calling themselves Orthodox, we never claim that it proves Litvaks are un-tznius. When girls do it who follow Chabad hanhagas, people use it as a proof against Chabad.
It’s not fair that when Ashkenazim have one foot off the derech, we relabel them as MO so that they don’t set a bad example as Litvaks. When Lubavitchers do the same, we keep calling them full-blown Lubavitchers.