Nor does the article state what the intended target even is.
Typically, UNIX systems was for servers. And that is probably where security matters the most, too. Along with a conservative view on what hardware to support, it sounds an awful lot like a server operating system.
So does the article claim that it is good to run an operating system that targets servers on your desktop or laptop?
Historically, I don’t think that’s the case. It was developed (after its computer game concept) to support online documentation production. Most of its installations were timesharing systems (e.g. Vax) until the workstation era when it developed the workstation/server split. Considering the proliferation of graphical interfaces on Unix in the 80s, it’s definitely a desktop OS.
Typically, UNIX systems was for servers. And that is probably where security matters the most, too. Along with a conservative view on what hardware to support, it sounds an awful lot like a server operating system.
So does the article claim that it is good to run an operating system that targets servers on your desktop or laptop?