Don't tar UNIX with such a broad brush. One of its important innovations was allowing someone besides the system programmers to make commands that could be used

Don't tar UNIX with such a broad brush. One of its important innovations was allowing someone besides the system programmers to make commands that could be used in exactly the same way system-provided commands could. A consequence is that sometimes commands were created with less care than the whole system was, or were inconsistent because there were made by so many different people. Don't confuse a strength with weakness. (It used to be, of course, that people knew the difference between the operating system and programs that ran on it, but Microsoft confused that forever.)