vengeance of the dead, how it works with 1000+ ?

[triqui]

johan osterman said:
It is ther to make sure turns end. If it wasn't there turn resolution could go on forever.

I dont get it. How is so? I mean... the turn 50 attackers "should" retreat. Even attackrs that do not retreat (like golems) die. However, in this spell, the attacker do not retreat or die. How is it that this is there to make sure turns end? Wouldnt the turn ends regardless if the attackers could retreat or vanish, like golems do?
EDIT: answered before your edit, didnt know you were speaking to nt jedi. My question remains, though.