Board Thread:General Discussion/@comment-25752308-20150121131432/@comment-3976024-20150131100225

You're taking Vilgax's statement too literally; when erasing the other timelines, the Time Bomb likely didn't metaphysically tie in to the alternate Bens hearing of the Omnitrix, it was probably just set to erase every timeline except for No Watch Ben's. Besides, No Watch Ben had only ever seen, wielded or had knowledge of the other Bens' Omnitrixes, and not an Omnitrix native to his own universe.