Jason mentioned it on his podcast, but I didn’t see it in the article. The iPhone 11 Pros are also moving into the right direction. They are heavier, slightly thicker and have better battery life. The Apple battery cases have always been a case of function over form. They have always been butt ugly, but more functional than third party cases.
I understand why Snell wrote this article now--to tap some pageviews off the public interest in the 16" Macbook Pro announcement--but his fundamental thesis is wrong.
Apple has always balanced size vs functionality; it has not been a continuous track toward thinner and thinner under Jobs or Ive. Where they have made major missteps, it is because they guessed wrong about technology, not some Ive-driven quest for thinness at all costs.