I'm not most users, I guess. I see the media browser and think, "Hey, one-stop shopping".
Also, like I said before, I tend to forget that the FX Chain is there, because I have all of my most used folders in my menu. However, I suppose I could create a new preset menu for just FX Chains and set the browser to use that one. Perhaps a tab under the Plugin browser for FX Chains might be a good idea as well.