The only reason why a stack of 64 Cobblestone consumes the same amount of energy as a Single Uranium Cell its because of lazyness.
Since the warp drive works with the actual placed blocks (2 of which that are basically the size of steve), lazyness isnt going to cut it in make the energy requirement a lot less than the regular teleporter, mostly because of a little something called balance.
the patent excuse seems pretty industrial to me and besides what would be wrong if the teleporter's power requirements were dropped to match? also remember this is a teleporter in name only warp drives are supposed to cheat the laws of physics by keeping you stationary and bringing your destination to you(or something like that its all techno-babble in the end) my point is saying it doesn't work cause of how teleporters work is equivalent to as you put it "talking out of your ass" cause if your wrap it in enough techno-babble people will accept it. you also said nothing of making the warp drive its own tier5 internal power storage.
oh and sneaky there with the colored spoiler text