😄 Do you think every mistake is a "typo" just because it's written down? I'm kind of shocked this requires explanation, but a typo is a "typographical error", an error in typography. It's essentially a transcription error introduced by the process of typesetting/typing it. With a typo, the author knows the correct information and accidentally transcribes that to incorrect text.
That is my point-- 9 to 8 would make a much more likely typographical error than 9 to 1 and certain 9 to 10. So no, I don't believe that's the most likely cause of the error. The more likely causes are miscommunications within the organization, lack of communication leading their technical writer to research for themselves how many cores are in an M2, or a change in specs after the original draft was complete leaving obsolete information to be published or perhaps to be resurrected when reverting to an earlier draft.
You have both said over and over, with certainty, that this is a typo. To wit:
(emphasis yours)
(emphasis yours)
Please retract your accusation that I'm lying, thanks.