I do understand what Slate is trying to say, even if it sounds a bit too harsh.
If you listen to the majority of top managers, you get a feel that they are football thinkers, who can explain their views on the game in a clear and sometimes original way. The same for top pundits who are articulate in discussing what they think went well and what didn't.
It isn't one of Moore's stronger points. His interviews generally stick to very safe lines, we stick together, we did some things well, we showed fight, sometimes while stumbling over his words.
It could be a sign of someone nervous in front of the camera, and maybe he is a deep thinker about the game but he hasn't yet been able to reflect that in his interviews, but that is all we have to go on. It does give me more confidence in a manager when they are articulate as I can more readily understand their ideas about the game. Hopefully Moore gets better at it.