You do realize the game was often running over 30fps and causing stuttering? Your narrative is not adding up. The devs were under no obligation to spend money and man hours on a released game that was in a perfectly working state. It was not a broken mess like Unity causing a huge PR shitstorm. Most everyone was happy with the graphics and performance for Dying Light.
That dialogue works both ways. You don't know that they weren't already working on that specific patch prior to launch and it just didn't make it in time for day 1.
Anyway, if you guys want to believe that there is a SDK problem or that developers are incompetent at changing the value of AF for textures and are waiting for proof of it, you guys are welcome to sit here and wait. I don't think you'll ever get an answer.
I'm moving on from this topic.