There is a difference between inclusion and referencing actual problems. Pokémon is including to people of dark skin colours by having characters like Kiawe and Olivia in the cast. Their skin colours are never directly referenced and it's not any sort of issue whatsoever in the pokémon world, but it's there and is inclusion. We're talking more on that line. The Passimian episode is controversial for different reasons, it's because giving a character black face-paint to make him look like a monkey is historically insensitive.
Anyway, back on topic. I do think representation is important, and it has to be done well. There is still a lot of misinformation out there regarding stereotypes, there's still a lot of homophobia and transphobia out there, also in 'modern' western nations. Having different rolemodels, including LGBT+ rolemodels, can show people that it's okay to be LGBT, that it doesn't have to make you different from anyone else. That just because someone is male and attracted to other males doesn't suddenly mean that said person will enjoy wearing dresses or like girly things or whatever. Obviously not every franchise has to have LGBT representation, but I think Pokémon is such an enormous franchise with so many people watching the anime and so many people playing the games that it has a moral obligation to do so. With power comes responsibility, or something like that.