Well nothing really needs to be da vinci, doesn't make it any less worth of credit. As to whether they could have come with it themselves: sure they "might" have, the facts however are that they had the same idea with the same layout and same animation AFTER having SEEN my design. From there if we want to talk likelihoods...

ps: just tried the new system, the characters even move like sheheramazond on my mock up😅😅.