Again, your understanding of how Mantle evolved into Vulkan is incorrect as is your understanding of which consoles support Vulkan and how much the graphics API

Again, your understanding of how Mantle evolved into Vulkan is incorrect as is your understanding of which consoles support Vulkan and how much the graphics APIs for both those consoles differ from Vulkan. Consoles are far from a driving factor for Vulkan other than the need for these engines to abstract anyway.