However, most of the retcons made for the series make perfect sense for the storyDaimawas trying to tell.
Imagine, for a moment, if Gokus fight against Gomah didnt involve a new transformation.
Many fans wouldve been quite disappointed, and it wouldve made the fight seem too easy.
By forcing Goku to reach a new level, it emphasizes the power of the villain.
While retcons can be irritating to fans, its clear that they arent always a bad thing.
Getting upset over retcons wont change their existence, but it can affect ones enjoyment of the material.