#1638: Many Reasons
Another very reasonable explanation for why Angel can't interfere. He can go places in the past he's never been before, but any place where he's been in some capacity he has to avoid for all future visits. Just the way it has to be.
When evil spreads across the land, and darkness rises and the monsters roam. When the creatures of the night make beautiful music, and the things that go bump in the night go bump with greater enthusiasm. When the world is in peril and is in need of a hero...
These guys are, sadly, the best the world can hope for. These are the adventures of the heroes of CVRPG. They mean well, they try hard, and occasionally they do the impossible...
They actually do something heroic.
