The stark contrast of the narration, coupled with Aaron Kuder's particular artistic style made The inhumans seem especially creepy. They're not typically so cultish in their demeanor and the majority of Crystal's team (Flint, Naja, Grid, and Iso) are all new Inhumans who have no true connection to Old Attilan... and certainly no culpability over the deleterious effects of the Terrigen Cloud.
Yet it all might be immaterial. If the two storylines in the issue are taking place simultaneously, then there must be two Terrigen Clouds - one that is deadly to Mutants that had just past over the coast of Scotland, and another, possibly benign to Mutants, making landfall half a world away in Japan.