Supports are a big problem in 3D printing. I think the approach (for larger areas of support) should be to create a firm layer to build on as good as a raft, but elevated, and of course following the shape of the model above it. And for smaller areas I suppose the current approach is ok but still not great. Maybe all that's needed is a better geometry of the support column... perhaps like a martini glass cross section shape. So much plastic is spend building up from the bed for tall supports. They should start out sparse (but stronger than the corrugated shapes used now) and then transition to the build surface (visualize a forest of trees with thick canopy above). But it should be more sophisticated that just dense corrugation. JMHO, and I know easier said than done. Fix supports to get good surface quality and you will own the industry.