Why would the web server need to be running macOS? From my understanding an admin could be ssh’d into a server and tailing/gripping the logs there while using i

Why would the web server need to be running macOS? From my understanding an admin could be ssh’d into a server and tailing/gripping the logs there while using iTerm. If the malicious input was in the logs, then the attacker could take over the admins machine, and by extension, possibly any machine the admin had access to.