Nah, bullshit. The editor just thought that writing touch/slap etc for the GF version would raise the ire of feminists or generally any women (that are all more or less feminists nowadays) and white knights. They thought it was no issue to write it for the BF version.  So yes, it seems that there's a persavise message in our societies that the things that are ok to do to men are taboo when it comes to women. And the difference in age requirement seems to indicate that boys are vicious but anything a girl would do is innocent.