Because Metasploit is just for known vulnerabilities, while AI is digging around looking for new 0-days to exploit. Because Metasploit gives the decision to be

Because Metasploit is just for known vulnerabilities, while AI is digging around looking for new 0-days to exploit. Because Metasploit gives the decision to be malicious entirely to the human user, while AI might do something malicious unprompted (like hacking HuggingFace to cheat on a benchmark).