Yes, the culture in general has this exact problem. However, we are talking about games because, by and large, this is a gaming related site. Pixel art is associated with games, and probably attracts more gamers than filmmakers or fashion writers. Just like I was told to make a game to start a trend, its only logical to talk about a medium that the audience is interested in/has a chance of influencing.
Female gamers don't exist in a vacuum, and there are many who are influenced by how their gender is portrayed. If all the females that you looked up to in games are portrayed like Lara Croft, won't that skew your worldview on what makes a character or player beautiful? Just because there are people who are happy with how things currently are doesn't mean people who AREN'T should be ignored. Again, I underline that games that advertise character creation need to give you an opportunity to play whoever the hell you want. While you can play an ugly, handsome, fat, thin, muscular, old or young males, the only option when given a female is a slight shift from petite to curvy. It may seem weird at first to think of adding an old hag into a game like Street Fighter, but I believe that's because street fighter has never had any kind of age range of females.
The thing about the fat-part in the feminism post is that people should not level hate toward others for how they look. It's the same as hating someone entirely on their skin color, height or the clothes they choose to wear.
Apparently its considered less douche if you are 'concerned for their health.' However, how do you know how healthy someone is? Besides, is it your job to tell random people that they are unhealthy? Unless you are their doctor, then I'd wager that the answer is no.
Lastly, female power fantasy.
I believe female power fantasy would often times be being able to do heroic things without having to be sexy first.
A real person performing rigorous action doesn't look 'sexy' at all times. They don't have an alluring expression, an aestethically pleasing pose (discounting the aestethic of athletics itself, which is different from 'look at my beautiful hips' beauty), free-flowing hair (or otherwise put into a pretty hairdo) nor are their boobs always visible or emphasized. Their awesomeness comes from the fact that they DO, not that they ARE.