There’s no indication that cook is leaving because of Apple Intelligence. It’s been rumoured for ages that he was leaving, to be replaced by Ternus

You’re just choosing to believe whatever you want to believe, facts be damned

Federighi is the one who talked Cook in to moving the company towards AI, and he’s the person who was put in charge of the AI-ification of Siri when the previous fly was let go. Turnus is a hardware guy. The two things he’s most responsible for are Apple Silicon and AirPods.

Oh, and he was the one who pushed for the Macbook Neo, which has been hugely successful -commercially, in terms of reception, and has even had CEOs of other companies like Dell saying it’s a serious threat to their business

It’s been rumoured for about a year now

There doesn’t have to be a health issue. 65 is not an unreasonable age to want to transition into semi-retirement