[Matrixbeast]

I enjoy the fact that Ash wasn't some child prodigy (Well, if you ignore the movies, that is. Otherwise he's fucking supergod), and him losing the Indigo League made sense because he otherwise won his battles through brute forcing his way through, or being given wins though his kind actions rather than skill. He wasn't really prepared for the league and it showed.

Come time for the league is when they fumbled. Building up a rivalry against this character to never have them face off, and an expy of Ash being introduced out of the blue (Rather than one of the numerous memorable characters Ash met along his journey), inexplicably becoming his bestest friend, beats him, then vanishes. No satisfaction to be found.

I actually found Origins to be lacking because of what I fear this movie will do. No progression of growth or story because every notable event is skipped over.
Mercifully, Ash does keep a consistent team throughout his journey, so each battle won't be featuring a new Pokemon he inexplicably caught only to never appear again, so that issue probably won't come up.