The compact That Squirrel has with Asmodeus does require it not to act against Asmodeus's interests.
Or at least Asmodeus thinks so, He can't properly read the Infernal language of the compact that a devil wrote to specify That Squirrel's duties, and He knows that devil was deemed by her own superior to have screwed up and been severely punished as a result.
But anyways it still seems pretty unlike that the destruction of Golarion, or even the risk of such, is being deliberately plotted by That Squirrel. It's probably just being weird again.