It depends on the asteroid size. Afik, there's a very abrupt limit on the size of an asteroid where if it's larger it will "touch" the ground and if it's small

It depends on the asteroid size. Afik, there's a very abrupt limit on the size of an asteroid where if it's larger it will "touch" the ground and if it's smaller, it airbursts. So if we could split the asteroid in 10, maybe we go from "completely destroy everything within a 100 miles radius" to 10 Chelyabinsk events.