Keith Poolman is a solid ref. He's been doing it for a long time and will probably end up in the Dan Gable HOF someday. He's called stalling in that fashion for as long as I can remember. He used to do some high school matches and would call it like that even back then. You don't build up credit with him for taking the last seven shots. If' youre stalling at that moment he's gonna call you for it. Mike Allen used to call stalling like that too and I think everyone agrees that he was one of the best.
I'm giving him a pass on the cautions. IIRC they changed the rule this year so that the ref isnt blowing the whistle so quickly. Correct me if I am wrong about that.