From the reddit, he says that since the "Thing" chunkloads itself, it'll go looking for people/mobs.
But the other thing you need to kill won't. So you will suddenly be getting attacked by "the thing" without even having the basic morph knowledge you would have gotten from the other thing that spawns at this meteor site.
So the thing, after getting it's pound of flesh from you, starts to run/fly away. Can you keep up? Sure if you fly! Oh wait, I have no idea where the meteor landed and have no access to any morphing yet... Rinse Repeat.
I dunno, I'm a bit split on this mod. I really enjoy using the bat for compacting pipes/tunnels behind machines, but I can also see how this mod could/is abused.