Check his writing from 2022, it uses the same voice, the same formatting, the same style:
https://www.cringely.com/2022/03/29/how-to-quickly-end-the-w...
If that's not good enough, check this post from 2016: https://www.cringely.com/2016/10/31/heck-happened-apple/
Same voice, same style.
An Em dash is not a clear delineator of AI generated text.