The fact that it doesn't show up a certain way in certain map styles doesn't mean we should fudge tags. That would be https://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer and that's bad.
It might not look green in the default OSM style, but it looks just fine in another map style.
Our primary concern is for the tags to be accurate, not for the map to look pretty. 🙂 The way the map looks can always be fixed, but the underlying data is wrong...🤷 garbage in - garbage out.