I don't think Sentry took out the Molecule Man who possessed the power of the entire race of Beyonders, could kill Lifebringer Galactus with a thought, and shove the previous Marvel Omniverse into a box.
__________________ ”You presume limits to my power. There are none.”
As you saw, Owen can't use the power of the Beyonders, he can just store and then they put "slices" of Owen as an anchor in every universes they remake.
The power of the Beyonders was directed (used) by Reed Richards and shaped by Franklin into different Universes.