Probably because they don't yet know either
Nice work though, keep it up. The fire arrows are kind of funny, but once you get used to their look (they give the flaming arrows a more organic, less laser like quality) even your patchwork solution seems better than CA's release version (way too ballistic). And like I said everything else is just objectively so much better. They should pay you a freelance fee to incorporate your work into the game. Seriously.