That’s not an insult, if thats how you take it. Everyone does this in various ways to some extent. But a graphic EQ really introduces some serious phase shifting, so often you get a very unpredictable system, when working the graphics hard. You could do the same thing with a very steep parametric notch.
Usually it is better to do as much on the parametrics as possible, and only adress specific room problems on the graphic, since you take out energy from the entire sound. It is of course a personal preference to some extent, but it is a fact the way graphics behave unfortunately 
