The author seems to think that just because there's AI that is relatively good at taking decisions then that's enough to argue that CEOs should be superseded by said AIs. "If an AI can make it, why pay millions of dollars to human CEOs?"... As it was that simple.
The author also ignores completely the basic laws of economics. Does he think that this is some sort of AI that you will be able to buy from a shelf? Provided by a SaaS Vendor at 100 USD a month? Because that's the only way you can make a meaningful economic argument around this. But the reality is that if this is even remotely possible, it would have a huge R&D price tag and it won't be a product that can be sold at scale by a vendor.
That would defeat the economic incentives behind having a good decision maker taking the crucial decisions of your company. All decisions would look the same across several competitors if those decisions are taken by the same type of AI. This effectively makes such AI obsolete and operationally disadvantageous. So, you must build a proprietary replacement for your CEO and building such AI could be several orders of magnitude more expensive than hiring and paying a CEO.
CEOs can't be automated. At least not soon. People who believe abstract decision-making jobs can be automated don't understand what automation is about or what's capable of. AI as it exists today can't automate CEO jobs or any kind of job where the output of a worker is to take extraordinarily complex and multi-variable decisions.