The set up plays out EXACTLY
how you’d figure it would; the vampire attacks fisherman, the blood attracts
the shark, the shark eats the vampire. When two apex predators meet only
one will come out alive, or is …
When she exposes this truth, Loki’s followers just shrug it off as him being clever. You see Nisa is running on the foolish assumption that people, when well informed, will make good decisions.
Loki knows better.