The way I saw it, it was Gohan gaining the confidence to go off and live his life on his terms. He finally escaped his father's shadow and did something actively, finally harnessing the power we were told he had but only ever saw him unleash accidentally it when forced by being pushed over the edge. After that, I figure he could start moving the plot instead of being moved. Make him a changed man.

Or, you could just make it a happier ever after. You can't really make a plot after "happily ever after", of course, but then that's kind of why I'm okay with the series ending after that arc. I'm okay with just imagining the characters just living their life after that point. It's why I never watched past Toy Story 3 lol. I even heard 4 was really good, but never felt like anything was missing from the character's stories, and just preferred think of them living a cool, chill life I suppose. Maybe it's a weird quirk I have where I don't need more content even of a thing I super loved if I think they stuck the landing well enough, idk lol.

Interesting to hear about Super, though. Probably going to watch that video you linked instead of watching the show if what you said is true.