Hello mkdir2 and mcliquid.
Thank you for providing valuable photographs on this matter.
I've implemented some small improvements on this changeset. https://www.openstreetmap.org/changeset/157289824.
Now no one should be routed again through this dangerous piece of highway. I've added it back with the disused prefix and that's because there are a lot of shared gps tracks on osm and heatmaps from people that used the road when it was safe. Since aerial imagery does not yet display the hazard, any mapper could feel tempted to put it back on the map. Now, that's very unlikely to happen.