Board Thread:General Discussion/@comment-25752308-20150121131432/@comment-34326521-20150131081937

Vilgax said it would destroy every timeline who had a Ben who had so much as heard of the Omnitrix. Eon had heard of the Omnitrix, and he was an alternate version of Ben, so he got erased too. No Watch Ben didn't get erased because the bomb had been set before he had heard of the Omnitrix.