An interesting juxtaposition with this: there's definitely a group of 4e fans who think that look behind the curtain is good, so they want players to know about SC success mechanics, XP budgets, and monster roles, because they think it enhances the experience. Here's a relevant post from AbdulAlhazred from last year that mentions transparency being part of the draw for them, with a bunch of +1s from the forum's various 4e fans.
I'm definitely more on your side, where I find the game plays better if I make the mechanics intentionally opaque, or offer avenues to ignore them entirely (e.g. creative solutions circumventing a SC). That's apparently not a popular opinion in most 4e fan circles. Different strokes I suppose.