I worked in those rooms. I thought they were a crock and when that was done the companies were awash with money. I usually had no trouble visualizing the objectives in 3D but sometimes, for complex geology such as in thrust belts, I would take orthogonal cross sections and make 3D displays or take a map on tops and run rods through it to warp it to the right surface configuration so management could understand.
We had one those virtual reality rooms, that was a large 3D oval shape. After the thrill was over, it was decommissioned to a fancy meeting room dubbed the “egg”.