I wanted to clarify if Rectangles with the "Exclude buildings" flag set (without terraforming) should remove photogrammetry buildings? I'm not sure if they did in the past and SDK doesn't say they do, yet they do remove photogrammetry.
Another thing. Do polygons create more load on the system than rectangles? I used rectangles to exclude buildings as they worked fine for me, but in this case, I will have to move to polygons, as I need the ability to remove autogenerated (OSM, AI and MS) buildings but not the photogrammetry ones.