Take a look for yourself, this game should have probably just been moved to gen 9 exclusive by the look of it. With both poor image quality and failure to maintain a stable framerate on gen 8 consoles, but smooth performance with clear visuals on gen 9 consoles...one has to wonder if at some point this just did not become a gen 9 game overall.
For what reason? You can already play it on next gen consoles and it runs just fine. Running on last gen consoles is an OPTION for those who can't afford or couldn't get there hands on new hardware. Yes, sucks that it doesn't run as well on the old boxes but there are enough people who don't care about the performance and rather play it now than later and removing OPTIONS is always a bad thing.