I would LOVE to know the definition and criteria you are using... the places you mentioned are *crappy* fast food, but crappy isnt the ONLY type of fast food.
If you had said Buds or Mooyah arent fast food, then i sort of agree.. but 5 Guys and In n. Out are pretty much the epitome of fast food, done well.. along with Chick Fil A and Raising Canes,.