I wouldn't call that a black streak but more of a weird streak. Overall, that 'no contest' first fight against Walker turned to work fine for him after all. He got paid twice and got his win anyway.
Walker was quite entertaining, but he looked afraid of Ankalaev, like he was throwing all those stunt moves in an act of desperation, to keep Ankalaev away or something. It didn't look like a well-thought-through strategy.

Does anybody have any update on Hill? Has he fully recovered from whatever injury he had suffered? If so, he should be the one fighting Pereira next and Ankalaev could face a winner of Prohazka Vs Rakic, and whoever wins gets the next title shot.