How the hell do you spoil an album?
There might be twists and turns that you don't see coming, and that can be cool as hell on a first listen, but if you have already read about them, then you are already know they are coming.
For example, the ragtime bit in DT's The Dance of Eternity is something no one saw coming when Scenes came out, but if you had read about it beforehand, that moment of "Holy shit, this is ragtime in a Dream Theater song!" would have been lost.