OP - his statement is technically correct, but it really depends on the application. You can use Geo-Grid without any facing to help in some applications.
However, This does not apply to you.
I worked on a project for a dam and we used an MSE Wall for it, you need to:
1. Be sure your foundation...
OP, you will for sure have issues, especially on a river front.
BigH - What's your deal?
1. Last time I checked this was a topic about Geo-grid Retaining Wall (which Reinforced Earth (Trademark) walls, RECO) as far as I know do not and have never done Geo-Grid Walls?
2. There are many other MSE...