The first stage of the tournament "named after Van Kanigem"

...a hero who escaped/was ransomed/bought out during a battle can move on the day he escaped/was ransomed/bought out. You are allowed to buy such a hero, but you can only move him on the next day;

What's the reasoning behind this? :)

Escaping, being ransomed, and continuing to move – this is one of the standard and allowed schemes in the game. If he was dismissed, then it's understandable that he can only move on the next day, but if he escaped – what's the problem? :)