There is a great variety of foliage provided in the editor that can be used in foliage mode and in landscape grass types. There are a couple of flaws with the foliage. We cannot change the colors, also some of the foliage is affected by a biome mask that we cannot disable. Not being able to change colors or disable the biome mask really restricts what we can do with all of this foliage.
By exposing the materials and allowing instances to be made, developers can have a lot more creative freedom with making their own biomes in their projects.
I could be totally wrong here, but this change would make all of this foliage a lot more useful and it would also make foliage a lot more usable across different biomes.
