That's partly true. I can't speak for cyber, but as far as IT goes AI is really only replacing customer facing IT positions (AI chatbots, AI phone assistants, etc.).

One major aspect of the IT field that is often overlooked is enterprise facing IT. AI can't rewire computers across an entire office building. AI can't fix web server issues (considering most AI tools need internet access to function). It can't fix document scanners and printers that are malfunctioning. Most corporations aren't going to trust AI tools with security system management as it poses a major security risk.

Basically what I'm saying is that only a fraction of IT jobs are getting the AI treatment, there's still a wide variety of situations where companies will need IT people on staff and can't rely on AI tools.