Also, the hunted can move the marker one space at the end of each round, so the longer the game, the better the chances for the hunted. So even if the creature has a second token to block the lair, the hunted can simply chose one of the other locations. As long as they do not get caught the come closer to winning each round.
And to summarize this:
The only real goal for the hunted is to stay away from the hunter!
So any behaviour where the hunter is too obvious to predict is bad for the hunter