Problem demonstration:
https://youtu.be/GxBsnbzhc_A

That is intentional, as there are solid logs above the blocks that aren't covered in snow.

That is intentional, as there are solid logs above the blocks that aren't covered in snow.

But isn't main idea of the mod that snow with help of wind comes under trees? If yes, snow should be under all trees and branches of tree shouldn't matter. Branches are inside of tree. So they shouldn't affect how snow falls.

This looks not good.
It looked better if where was complete snow layer without gaps.