When I used to own Vue, I downloaded and tested some of these grasses and they were amazing. Pulling the same off in TG2 is still harder at this point, in my opinion. I even tried to download and save these as .obj, but the conversion process didn't work well.
This is one reason why I feel TG2 should "eventually" support procedural foliage - which would work similar to Vue's "Solid Growth" technique - which makes each instance unique and very realistic. I am unclear on if this would save on memory due to no more populations. TG2 may treat each instance similarly to how it treats fake stones.