"The Undead Storm" ignores spawn protection

The Undead Storm prophecy triggered in a map, creating tempests that spawned assorted undead monsters. Immediately upon zoning into the map a pack of skeletons spawned right next to the portal and attacked my character.

Most areas have a spawn exclusion zone around the entrance, it seems that this tempest ignores this restriction.

Screenshot and report number below. Corpses of undead are barely visible because they were shattered; but there are some remains visible at the bottom.