This is a small thing, there's no arguing there. But with details in place it creates that little extra quality we FF players are so fond of like Alaltus mentions here, memories are created by these details. Lifa tree is a big part of FF lore, and to give trees more life can only do good i think. There may be alot of other types of details that can be added as well, everything counts in my book. The roots was just something i immediatly noticed by some strange reason.