I don't really care, as long as people's stories behind them make sense and are fun. I love hearing other versions. lol
Though I'm a bit iffy on Athena only because her name doesn't fit the Swahili naming convention of most of the rest of the characters, Throwing Greek in there just puts a stall in my brain and pulls me out of it a bit. I dunno. I'm weird.
I LOVE your Erevu and Athena, including the story you made for them BUT I wouldn't consider it canon simply because, by definition, it's still fanon, as its created by a fan, and it's not actually in the original drafts/story/backstory of the Lion King :3 but I do love them <3