>>44114640Its because Takeshi Shudo was the writer of the Pokemon series all the way up to near the end of the Entei movie.
He left the series because he fell ill and someone else had to write the last part of that movie, and he really hated the post credit scene of Molly's mom being alive, since it ruined the point of the movie if she could just see her mom whenever. Understandably he didn't think it was worth staying with this series if they were to undermine his vision like that.
But yeah I'd say Pokemon movies from Kanto and Johto were pretty good, Hoenn was alright, and Sinnoh neat mostly because of the ambition of having an over arcing story between the movies. Everything else isn't that great however.