I think the thing to remember about Cook is that he’s a process and money guy, previously being the COO. I don’t think anyone at Apple would call him a “visionary” like they said about Jobs; that’s just not his style.
However the repercussions of this were pretty clearly felt, at least by me and my organization. We were tasked with a monumental infrastructure undertaking while continuing to support production use cases, and we were running as a skeleton crew for a lot of it, because getting headcount to hire more was such a heavily scrutinized process.
So I ended up on a team of 3 people maintaining 3 separate server components. It was honestly sort of brutal.
And I know Jobs was also famous for working people hard, but he had the charisma to make it have purpose. We were under Tim, and then under Eddy, who are… not the most charismatic fish in the sea. It really just felt like we were being pushed needlessly hard when hiring one or two more people would have made a massive difference and improved the overall development cadence and quality.