Manageable chunks would still either burn up in re-entry or slam into the ground with the kind of impacts that we'd be causing a lot of destruction with. In the water, we'd get Tsunami. On the land, we'd be making craters and burying the stuff we just dropped, necessitating mining them again, this time from the earth. During which point we can't drop any more, what with people in the LZ digging up the previous drop.