Eh, I don't mind it so much; they're fighting over control of the rocket more than they're actually fighting each other, and Steph's expression says "this pathetic loser needs to get off me," which is the appropriate reaction of a professional who's hair is being pulled, rather than "grr I hate you I kill you," which is the catfight reaction to hair-pulling. And Roxy seems to be grabbing at her hair as a flaily attempt to not fall off the rocket, rather than any genuine attempt to hurt Steph.
It doesn't have great connotations, sure, but it's no Catwoman #78.