still waiting on battlebunny pantheon

Dude. Fan-service sells. Deal with it.
The primary audience for League of Legends is Male.
Guys like breasts and fan-service.
Thus, you pander to the demographic to sell skins.
You don't HAVE to buy any skins. If you don't want to play as Playboy bunny Riven that's fine. Don't buy it.

However. If it has breasts and looks great in whatever it is that it is currently wearing in NewskinA, I'm probably going to buy it. And if I don't have the champion you know what? I'd probably buy that too.

Fanservice. Sells.

If you want male champions who are posing sexy without the entire male community screaming gay you need to get rid of the double standards which is not going to happen any time soon.
In history men have always been declared as soldiers, fighters, strong, whatever and females as beautiful. I think Riot have done a great job in variety because we have a lot of warrior women, maybe not as many beautiful men though, but that's really hard to create since your taste is too wide.