Personally I've never found reason to jump befire gliding because it means less stamina for the glide. But to be honest, it would have felt more natural if set up like original Mario games. That said, I don't mind where jump is placed, mostly because skyrim.
Really really really re Ally really enjoying this game. Already logged 10 hours of play time in in my first day with it. Loving it. I've barely scratched the surface too. Guardians are brutal. I had to go near Hyrule Castle to get something.... big mistake. I'm so looking forward to more of this...