I'm not sure if I get this or other arguments complaining about sexy female superhero/villains. I kind of get lost at the start. These are creations of outrageous fantasy so why should the erotic aspects be subject to particular criticism for - being outrageous?
As I see it, a pose is "over used" when it stop paying dividends, whatever they are (money, celebrity, page views). The kind of cool thing about the Internet is that when a visual commodity hits that threshold, it doesn't really go away. It just slips quickly onto the far end of the "long tail" where it can be rediscovered in a few dozen popularity life cycles as "retro." :-)
There's so much more to the impact of an image than just a pose....does it fit the mood? Does it display the clothes well? Does it suit the model's figure? If the answer is "yes"....how is it a bad thing?