Sit down, children, and let me tell you a tale.
So there I was, one day long ago, just about yesterday, when I decided to finally start the Delta Episode. I went through all the long and somewhat interesting text, before finally being able to run around and stuff. I decided to mess around on Route 1 for a little. In particular, I wanted to find a Lillipup. So I ran around, and soon I heard a cry that I thought was Lillipup. I snuck toward it, and to my surprise, the silhouette was that of a Zorua. I shrugged and thought, "Zorua's cool too," and walked into the patch of grass. Before the Zorua appeared, I thought, "Wouldn't it be funny if this was shiny?"
And of course, it was shiny.
So my question is, does that mean this shiny Zorua was full odds, or not? Please provide a source! Thanks! :D