The Star Wars universe bears no relation to reality. We are expected to accept that small starfighters can tank sustained fire from massive star destroyers and tie fighters (Ep V), the Empire's troops are inept at aiming and their armor is useless against sticks and stones (ewoks), and the universe's elite fighters, the jedi, are so, despite going into battle unarmored with a simple lightsaber and could be defeated by a shotgun or simply being shot by three opponents at once (a line cannot intersect three non-collinear points). There's no point in discussing Star Wars, because nothing stands up to scrutiny. Everything happened the way it did, because the writers said so.
^ Starwars discussion.