Maybe I'm missing something, but I just don't see why they would conflict in the first place.
I think they are trying to use Mystical is "life focused" cause it is "nature" argument, but nature is destructive, dies and it's decay brings forth more life (which is more accurate). Making references to the cycle of "life" comes back to "death", which is how Macabre seems to be referenced in the game during Life & Death. And that is why I think Macabre works perfect with Mystical. In nature death brings life; life brings death—that is nature.
