For example, no matter what a character contributed to the anime when they were around, once the next saga begins...it almost feels like they were never there, and any impact they had on Ash seems diminished.
Look at this for example, Misty and Gary motivated Ash in Kanto, but then in DP it was Dawn and Paul, and then in BW Iris and Trip.
Yet...once Misty left the anime, it felt like her significance to Ash and the show diminished. In all the sagas after Misty, she is very rarely mentioned and hardly ever shows up. Once Dawn left the anime, despite her being a co-star, it seems like her importance has now dropped.
Any impact Paul had on Ash, arguably his greatest rival, seems to not matter anymore in BW, as seen by Ash losing to Trip. While watching BW, you can arguably say the Gary and Paul rivalries feel like they no longer mattered.
Part of this, "fresh start" vibe makes it feel like everything the characters did in the previous series, or their impact on Ash, is essentially "undone" by the time the next saga starts.
Do you feel this way? Because when I'm watching BW, it honestly feels like Dawn, Paul, and the other DP characters no longer matter in terms of what Ash gained from them or their impact on the story. Much less ancient characters like Misty and Gary.
When a main character leaves the show, does it feel like their impact is totally gone in the next arc, due to their lack of mentions or influence on the show?