As a Roblox developer, it is currently too hard to keep all members of my game community happy, as some want to have the grass decoration visible and some do not.
If Roblox is able to address this issue, it would improve my development experience because I would be able to provide more options for my users and keep the entire community surrounding my game happy with the look of the map.
The Decoration property cannot be toggled by script as it will be superseded by some sort of terrain-decoration instance (or similar) at some point in the future, it is certainly inconvenient to not have a solution now, however.