I can't believe no one realizes the obvious: Gandalf's "Summon Eagles" spell has a very long cooldown, many decades in length. It was still on cooldown from h

I can't believe no one realizes the obvious: Gandalf's "Summon Eagles" spell has a very long cooldown, many decades in length. It was still on cooldown from his use in the Hobbit. The One Ring melting resets all cooldowns, so he decided to use it to pick the hobbits up for a return ride. Obviously.