I agree. We used it to park a boat and RV when we had a neighbor report us to code enforcement for "parking on unpaved surfaces" Worked well, but that was in GA and it was shaded enough that nothing grew there.Saw quite a bit of that in Europe. It is permeable to rain, so you don't get sheeting water and drainage problems in paved areas.
It has its uses but I wouldn't want to clear snow from it, or install it without a very stable base.