It's a way to make the reward "longer", and it keeps up thrilled. Also, it makes me want to watch more than if it were one big episode or if they were all released at once, because it's a little episode, so I don't get as lazy to watch. And I think that watching a guy getting angry at the game because they don't understand what the design for X element is for once in a while is better -why? I'm not sure- than watching him do it for a long time.
Nevermind, I never actually paid attention to the video release dates. Seems like one every fortnight. I can live with that. Oh and I'm aware that releasing all episodes at once would be a bad idea, that wasn't what I was hoping for. Just a slightly shorter gap between releases was my original intent.