In one of the Star Wars Tales comics,[1] an Imperial veteran of Endor makes a reference to the theory that the moon was devastated by the impact of falling debris ( ). Another character dismisses it as a myth, saying that most of the Death Star's mass was obliterated in the explosion, (Bullshit) and that the Rebels "took care of the rest (more bullshit)."
but the debris from the death star could still be drawn to it rather than to the planet if proximity and mass are right, which should be roughly correct.
(dont forget that OUR moon protects OUR planet from a lot of space debris by drawing it to it first, rather than to earth)