Well with Gible in play, Totodile would have felt a bit redundant. Both bite and both give off the same vibe of goofy but can kick ass. So in the end, the writers wanted to go for diversity and give more screentime to Gible as opposed to Totodile. So I'm not that bothered it didn't appear I would have loved to see it :P Though Quilava should have gotten Staraptor screentime in the Nando match (and Staraptor/Torterra should have gotten Gliscor's screentime and win in the Paul match). Bayleef, meh I don't care. P
Plus considering how little the Hoenn and Kanto pokes did in the League, I'm sort of glad they didn't take their place. Better to see them just on the sideline than to see them curbstomped.