Maybe he just bought into the AI hype as so many other business leaders are. Any kind of fraud prevention method is going to have false positives and associated costs, and in health insurance it can cost lives. But not handling fraud also costs lives by making insurance more expensive. If people just trying to do their best to manage a business and its customers are murdered over honest mistakes then nobody is going to want to run such a system. The fact it's an insurance company is not relevant. A government-run system could involve the same kind of mistakes.

Doctors themselves make a lot of potentially questionable choices that may be seen as costing lives. We have a fairly high bar for proving malpractice because any given patient could choose to blame the doctor personally. A business guy who is not egregiously messing things up on purpose or through gross negligence deserves some benefit of the doubt as well.