The two lores, star wars and lotr, are very different. Star wars shy's away from the divine and combines technology with a deeper reality (the force). Lotr embraces the divine. Illutuvar created all things, the universe, the spirits and creatures. Nothing happened on middle earth that was not part of IIutuvar's plan. If the deathstar was meant to destroy middle earth, it would. But if Illutuvar had a different plan....then well probably an ignorant farm boy with no real flying skills would shoot a little tiny rocket through an equally tiny hole and destroy a planetoid!
While the force is a powerful ally, the divine is well divine.
Who knows. Maybe the “ignorant farm boy with no real flying skills who shoot a little tiny rocket through an equally tiny hole and destroy a planetoid” was Illutuvars plan.