All fair, other than I didn't say they are pointless. I said they don't matter. In the sense, they are simply predictions based on how they expect teams to perform. But both teams are already deviating from the expectation. If that makes sense.
They don't matter for what?
They don't matter in the trivial sense, that they don't play on the pitch and decide games, nobody in his right mind would say otherwise.
They do matter, though, if one wants to form an opinion on the probabilities for a City title win after the loss vs Brentford. E.g., one can be worried we are in a bad position now, and can question his worrying conclusions by looking up at people who are better at calculating probabilities of football games. Probabilities don't guarantee outcomes, nobody denies that.