There’s a difference. Lando and the Ewoks did actually did change as events moved along. They were actual adversaries that became allies. Rose and Holdo didn’t change at all, they changed the main characters views. Finn learned from Rose and Poe from Holdo. To me TLJ is about learning from failure. Decisions aren’t always black or white, there’s a whole lot of gray.
^ " The greatest teacher , failure is " -Yoda . That is indeed the central theme of TLJ . I had a teacher , decades ago in art school ,who taught his students this exact principle ,which is one of the reasons this theme resonates so strongly with me . As for Luke being an antagonist , I would say it was Rey being the antagonist in the beginning of TLJ . Luke just wanted to be left alone , Rey antagonized him . In the end , Luke did the right thing ,heeding Yoda’s final lesson .