If you don't think this was a bad situation, please take a recap. Remember that vampiric human who had a frightening reputation, fought off royal guards, and challenged an Equestrian prince to a duel of honour? Who supposedly died and disappeared during the fiasco of a fall festival in Firthengart and now two griffon kingdoms on Equestria's borders were building up their military preparedness for unknown reasons? And now he just so happened to surface in the middle of Equestria itself after being missing for how long? Yeah, he'd cause rather a lot more than minor consternation if he were to be discovered.