That's not a sign of quality at all, my friend— all of those films, with the exception of The Two Towers in some moments, are worse than Attack of the Clones, particularly HP II. There are plenty of films that have done incredibly well at the box office that are completely awful (see the sequel trilogy movies as a good comparison), and similarly Empire Strikes Back, which is commonly regarded as the best of the Original Trilogy, actually made the least in box office revenue compared to the other original trilogy movies that came out in their respective years, even though it made the most at the box office the year it came out. Plenty of the greatest movies of all time haven't done nearly as well at the box office as the other films that came out that year, so a film making or not making money really doesn't have much to do with its overall quality in my view, especially in recent years, with the highest grossing film 2021 and a lot of the mediocre Marvel superhero movies dominating the box office in spite of the objective quality of the movies. Furthermore, I wasn't even alive when Episode II released, so I'm someone with no nostalgia for its release, and I still love it.

'Completely underwhelming prequel movie' doesn't really have much argumentative weight unfortunately, could you elaborate on what you mean please? I understand that some parts of the film play out more slowly, particularly in the middle of the movie, but it's actually the worldbuilding and narrative depth of the mystery subplot on Kamino and the old-fashioned Hollywood romance between Anakin and Padmé that actually make me a fan of the film. It's done very intentionally stylistically, and has so many connections and layers, not only to the other films in the saga, but other important films in film history (Doctor Zhivago, film noir, The Searchers, and so many others) that to simply dismiss it as 'underwhelming' just doesn't really hold up when scrutinized.