Yeah, and Nightstalker grenades or Envenomed smoke won't kill you on their own like a fusion will unless you literally just stand there and wait until you die. The tracking on the fusion grenades is pretty strong, comparing them to the essentially non existent tracking on hammers is nonsense. Smokes and the other Nightstalker grenades require about the same amount of accuracy to be effective. If you don't land it right under them, they'll just walk out easily without taking much damage. Fusions also only require that you have Fusion grenades selected. Whereas for smoke to be offensively useful you need the Envenomed and Lockdown perks selected.