est to be more specific, Arteta's quote about ESR has been taken out of context. It has been interpreted as Arteta suggesting he's not good enough despite previous performances. The context of the quote is ESR's rehabilitation from injury, which is relevant.
As I said above, I don't think ESR's situation and Havertz's are mutually inclusive. It's a simple narrative to connect the dots between the two but I don't think it's a true reflection of the reality.