So that's what they were talking about. Commented on the wrong chapter, or the comments are getting screwy somehow and it showed up on the wrong chapter section for me (I swear it wasn't there when I commented despite being older so I dunno). But yes that was quite an epic fall and I laughed too.
It's a nice touch that just as she was talking about redeeming qualities, we find that the gyaru also has a redeeming quality - kindness to animals (feeding the pigeons).
Not enough to make them nice people, but at least another facet to them.