I don't see what the huge fuss is about really. To me it seems more like an excuse for people to try and seem sagely and mature by posting disapproval of pictures of hot girls posing. I checked out both the links and to be honest I couldn't read what the mag actually says, and really the comments about the guy "Rod 360" who put this together seem to largely be speculation, other than commenting on his other "periodicals".
Ubisoft has had a long-standing "Frag Dolls" promotion (which I believe is still alive and well) where the whole idea is similar, they found a bunch of hot girls who play games, grouped them up as a "team" and use them as promotional eye candy for their products and gaming in general. Likewise there have been quite a few hot girls over the years in pawn and modeling who have made a thing out of their gaming habits, including Asia Carerra who was hosting her own Counterstrike (I think that was the game, it's been a while) server for a while. A few female pro-gamer teams have likewise done some fairly racy videos for fun, and then of course we have "Team Unicorn".
The bottom line is that this is another thing using hot girls and gaming to move a product, for promotional purposes, or as the product itself. It's like in "Battlestar Galactica" "As it has happened before, it will happen again". I don't see this as being especially noteworthy.
The biggest question here of course comes down to whether those are actually hot girls who game, or hot girls paid to pose and let him write stuff about how they like to game. That is always the deal with these kinds of things, and how a lot of the "fake geek girl" stuff takes on a life of it's own. Personally, I'll be interested in seeing if any of those ladies show up later in anything gaming or geek culture related where they obviously aren't being paid for it. It is possible, and if that happens this periodical might do more good than harm by helping dispel a lot of the paranoia involved whenever a hot girl says she likes games or comics or whatever.
For those more interested in periodicals aimed at girls that game, while they are PnP oriented I believe I saw some with titles like "D20 girls" and stuff on Drivethru RPG before, a few of them were free if I recall, and the blurbs seemed to imply that is what they were for. I have yet to run into a periodical aimed at girls who video game specifically though.... that said if there was one, going by other ladies magazines you might find a lot of similarities to this, at least in the overall modeling, sex appeal, etc... as ladies mags in part sell glamour and the implication that "you can be like this".
Also, I'll say the cover for "Gamer Girls" was a decent job, see it's designed to be an eyecatch, and it succeeded in that. Like a lot of covers it doesn't hold up to close scrutiny, but it's certainly attention grabbing. Love it or hate it, the guy doing this has some talent with a camera.