Quoted By:
>Bellossom should be Fairy Type because if they can give Fairy to the Azurill Line so it's evolution into Marill makes a little more sense, then Bellossom should have gotten it so it's evolution from Gloom makes sense, too.
Hula Dancers aren't fairies though. They tend to have nothing to do with fae and are just cheerful individuals who wear plant-like material as skirts. Also Gloom dropping the Poison typing isn't weird at all dispite it being a step back defensively. Gloom is a foul smelling toxic plant with a gloomy appearance. Bellossom does the opposite by replacing the foul flower with freshly blossomed flowers with a good sent alongside a cheerful bright attitude which is why it drops the Poison typing as it doesn't suit Blossom's concept. Its more of a flavor thing, as the game wasn't designed for competitive during gen 2.