Because those arent 0 days. Those routers/doorbells/fridges will never receive updates.
I wonder if the OG Mirai minecraft server wars botnet hackers working for FBI now were part of this task force.
Original story https://www.wired.com/story/mirai-botnet-minecraft-scam-brou...
Fantastic follow up https://www.wired.com/story/mirai-untold-story-three-young-h...