It begins with “obviously” then says a few silly things. What does “with a lot more experience in software development” mean? Does that mean that the team at Microsoft is generally later in its career than the team at Apple? That’s kind of weird and unsubstantiated. Maybe it is trying to say that Windows is more mature, because it has been around longer? Yet, both operating systems are better from the result of many significant overhauls and redesigns, rather than refinement alone. Even determining which one is older would be a pointless discussion, since there are so many different ways of measuring the age of different components.
Finally, “merely a mod of components from Linux”? I don’t think anyone cared about the distinction between BSD and Linux or GNU user space tools. Things like a kernel with a multiuser system and different permissions are the types of improvements that were once difficult to handle on most consumer machines, yet they were also incorporated into Windows with NT. UNIX is part of the Mac OS being a modern operating system. Even if you lose the weasel word “merely”, OS X is not only a window manager or desktop environment, at a low level there are significant architectural distinctions between OS X and FreeBSD, and differences between OS X and FreeBSD compared to Linux that were developed at Apple.
The point is not that they cannot be compared, but that they have actual merits to compare rather than weaselly arguments as though we were in a 1990s chat room or forum.