anyone calling this "a problem" prolly never been in SL for a long time, because this happened waaay back with appliers in the same fashion (pardon the pun), remember the "Universal" appliers? the Lola appliers? really this is basicly the same, you have a brand leading the market, and because its used by the largest demographic, they get exclusives, because its creators the safest bet their product gets sold. really this is how a market operates, and has always been in SL. And yes thank god we have different bodies for sale, and I will always try support the smaller brands, or the ones wich doesnt look "normal" because, hey this is SL, and you can shapeshift in anything you want. So I pay premium for clothing for lesser known bodies, or I get off my (nicely shaped) butt and try that blender thing myself.
Or maybe the lindens get finally a good looking standard body wich everyone can shape into their liking, but hey thats ofcourse never gonna happen.