There's always been some confusion about how Teir's powers work. I, myself, have never been a fan of "animal control" powers. In earlier stories in which Teir appeared, the depiction of his influence over animals made me uneasy. Mind control, to me, is heinous (hence villainous Winnowill). Teir's powers in FQ Ish 3 are depicted as working in harmony with the animals' natural instincts...letting them choose their behaviors, as it were. There will be more fine tuning of this as the story progresses.