To a degree, you are right, but I do believe things are changing, unless we no longer consider guys like Julius Peppers, Michael Strahan, Jevon Kearse (especially during his dominant days in Tennessee), Bryce Fisher, or Adewale Ogunleye "premier pass rushers". I think most teams realize that these guys have the size to hold up against the run yet have the speed to beat the bigger, slower (in most cases) RTs off the edge.