Individually, micro-sats will have much less momentum at the same speed. In the event of a collision, not all the mass of the micro-sats will necessarily impact

Individually, micro-sats will have much less momentum at the same speed. In the event of a collision, not all the mass of the micro-sats will necessarily impact the other object, either. By way of analogy, you would probably rather be shot with buckshot than a cannonball if you wanted an open casket.