I will second the importance of being able to click the cave as an attacker. It's not just leeching that it matters-- also big in runs with 2 healers, which is the fastest way to play the minigame currently. I cut some examples together here to show how useful a quick reposition can be.
Even if the defender "blocking" caves part had to be removed, maybe you could just throw in a (possibly toggleable) option that keeps the repositioning elements intact? Maybe an "inspect" option, that still has you run to the cave, but spits out some fluff text?
Could we not remove blocking tunnels in BA? It's currently very useful for those who solo attacker in leeches as it allows them to path north without clicking on monsters. Removing this would make it more difficult.
I appreciate the example, and the j-pop