Creaking Hates Undead Mobs

I think it would be great if the Creaking had a dislike for undead mobs or viewed them as nutrients perhaps and would proceed to kill zombies and skeletons to feed the tree in a sense. That would make the Creaking heart more useful to players for setting up a defense force to kill undead mobs around their base with the trade-off being the night time still being unsafe having the creaking around (but at least zombies won't break down their doors).