Can someone explain what happened here?

[archaeolept]

a moloch's cowardice is legendary.

that said, there are generally 3 ways to use him:

1. behind a troop force as an arty caster (f9 a4 will give him serious punch pretty well out of the gate).

2. w/ a few dispersed archers at the back - its unlikely they will all break or be killed. lame infantry on "hold and attack" also works very well.

3. w/ a magical aid - wraith crown will sometimes work, but is not dependable. The real solution is to give him lifelong protection, which is nicely thematic, and the 2 new imps/round spawn before the morale check, so your moloch will never run.