I would like to post the following idea. We have a beautiful dataset in 3D which is under the surface. In the Web Scene it's possible to look through the ground, but the results are quite ugly in my opinion.
It would benefit the map when the grid-like textures are gone as an option. Sometimes a basemap makes the map terrible. As an example how it looks now, see the attached image:
I would like to disable this grid. In this example I've chosen for the Dark Canvas Basemap; which is the best options in this case.