The Ultimate Plot Hole

In the Fantastic Four’s first encounter with Galactus, they get a little help from the Watcher, who gives Reed Richards access to the Ultimate Nullifier, a device with which he is able to drive Galactus away from Earth.

Sorry, the Earth would have been toast.
Sorry, the Earth would have been toast.

Are we to believe that Galactus, an almost omnipotent being, capable of creating demigods like the Silver Surfer, subsisting on the life-energy of entire planets, born in the fire of the Big Bang…

…can’t simply take the damned thing away from Reed Richards, the guy whose power is the ability to stretch?

Surely Galactus could have paralyzed Reed rendering him unable to trigger the device. He could have teleported the device from Reed’s hand. He could simply cause Reed to instantly be dead. There are an infinite number of ways a being like Galactus could have easily solved this problem.

I call BULLSHIT!