>>41144450I read the entire thing before my post. He doesn't cite any kind of proof at all. Not every aspect of them has to be random for them to have a chance of being shiny. When you breed a Vulpix and a Vulpix together, do you expect it to shit out a Venonat? No, it's predetermined to be a Vulpix. Does that mean the Vulpix can't be shiny then? Also no.
The spawns can be limited to specific pokemon and still have the option of being shiny. I'm not saying that is or isn't the case, just that his argument is not "proof" or "confirmation".