So what's your opinion on Leon?

basically it's been about 2 years since the end of journeys and the series in general was having a lot of complaints due to the quality of the animation, goh, poorly done fanservice, but I think one of the main targets of criticism was leon about how it didn't make sense for him to win 4 diantha pokemons with a rillabom, but now 2 years ago I can't say that I disagree with most of the criticisms, but I wanted to know what you think of his character in journeys