Saltwater or Nile crocodiles aren't even on the list, and those two alone account for hundreds of deaths every year. In all honesty, I would rather get bit by an iguana than a Nile crocodile. ;)
Another point is the title "Predator Pets". I know this is getting nitpicky, but iguanas are not predators. They eat leaves and plants. Cats and dogs are predators. Iguanas don't attack to hunt their prey, they attack when they feel threatened, like most other animals.
But using the word "Predator" in the title of your show puts the focus on the perceived danger of these pets. So rather than it being a neutral, informative show about exotic pets, it instead drops a subliminal thought into the viewer's mind before they even watch..."Look at the dangerous animal this crazy person keeps as a pet!" And as a result any of us would feel like we will be presented as a crazy person who is in denial of just how dangerous our iguanas really are.
Certainly more dangerous than a 15 foot long crocodile!! ;)