Quote Originally Posted by Lemmy View Post
Probably because it's difficult to do more than break a whole planet without running out of a scenery for the story to take place... And characters are supposed to be controlling their energy so that they don't explode everything around them (and even then, Goku and Buu had to be transported away to particularly tough planet so that their fight didn't accidentally destroy Earth).
Zen-Oh did actually destroy all of Trunk's timeline in DB Super. So if we want more of those high level destruction feats shown, we'll need more Future Trunks Saga type of stuff.

Really, this is why we should have more fights taking in place in alternate timelines: so that more destruction can be shown without it impacting Earth. the Time Patrol doesn't make use of the fact that most of the timelines in its continuity are completely expendable because they are all things that aren't supposed to happen.