Some smoke warbands are wildly better than others, too. I think everyone can agree a Mutt is a much bigger threat to 90% of the models in the game than a Morlock or Shaolin Monk, for example. I rarely need to worry about a Morlock getting in my face and eating me, but a Mutt is a threat in the bubble around it no matter what. Galwegians are another offender due to Berserk + Dogged. I always come back to this being a problem with the way the points formula works when you put a bunch of useful one point skills or pieces of equipment on anything. Dart and Mutts have this in common.