I think the bust status on this season was because not only was he not getting any pressure, but he was running himself completely out of plays or taking out other defenders because he had no strength, speed or agility to defeat a defender. He was a liability and not an asset at all.
However, he did show some signs of life against the chief. I’d still grade him as a C overall for the game due in large part to that big pressure that was initially called a fumble (reversed, forced a chiefs FG) and on the last drive he forced some pressure. He definitely improved. Outside of those few plays, he was a non-factor (however not a complete liability). Hopefully he can build on his improved play going forward.