Quote Originally Posted by Rater202 View Post
Omniverse tends to make him act more childish for less reason and gives him trouble with things that he should have been able to do based on feats of intellect in the previous series.
The problem was Alien Force had Ben growing up and learning to be a leader over the first two seasons, and they were shedding viewers. So the studio decided to make him more like young Ben and then literally do a relaunch of young Ben.

It’s similar to the Spider-Man reboot of One More Day. They’ve left Alien Force Ben behind and see those sorts of stories as a mistake.