Because the majority of fans for Killer Instinct want a season 3, and they want it to happen. They want to see the rest of the classic characters Such as Tusk, Kim Wu, Eyedol, and Gargos. As well as more new characters and to get even more content from this new installment of the franchise that has been dormant for 17 years. Creating a Season 3 will appeal to both KI's fans aswell as its newcomers.