Rocks with enough metal ores to be useful and in sizes that can make it through re-entry with a useful quantity of material left tend to do other undesirable things, like smash stuff, just ask the dinosaurs.
Well, that one might be on the large side. Besides, a controlled re-entry from LEO would have lower speeds than a random solar system impactor and could also use aerobraking.
It still might be too risky, but it doesn't seem totally, obviously infeasible to me.
