Sometimes we can be pushed to anger to say something we never intended saying, well I want to believe this was a statement made as a quick reaction towards what he did, in life, we have to realize that people will not look on the good you have been consistent about doing over the years, the moment you made a mistake then that supercede over all the good ones he has been doing for long, that is why being a professional in his field requires steady consistency.
That is an ungrateful response from the coach, you can never hear a better coach like Guardiola or Arne Slot make such a statement. Whoose fault did they lose the game, one man cannot lead the whole squad, so why only talk about Lookman, what about the rest players in the squad. I think something secret is ongoing under the management, they are tired of the player forgetting what he did for the club, what they got last season was an effort from the player which a harsh statement has been made.