thats really not true in this years version. they really improved the collision detection in traffic so a 6'6" 350 dt will eat a ton of space and make it hard to run past him and also make it more difficult for other olineman to get to the second level. . similarly a 5'10" 290 lb dt with the same attributes will be just as good, but easier to simply run around with a speed guy, and getting uncovered lineman to the linebackers isnt an issue at all. so the prototype does matter in my opinion. especially if you play 3-4 and the de's and nt HAVE to eat up space. otherwise youre gonna get gashed all day.
in previous years this was never really an issue becuase uncovered players could magically go through engaged lineman to get to lbs.