Earlier quoted context omitted.
You mean the myth of the UNIX way, never followed upon commercial UNIXes and somehow became a cargo cult on FOSS community only thank to a book of UNIX idols?
Right, the only true Unix philosophy which ever described reality was "worse is better." Just look at the GNU coding guidelines, it explicitly mentions that GNU tools are not to use static buffers and silently truncate long lines. Why? Because that's what proprietary Unix implementations were doing at the time! Silent truncation of long input lines! Is that "doing one thing and doing it well" (DOTADIW)? Hell no! DOTA…
Not to mention the mess with glibc and their war against anyone who wants to do static linking. There's a long history of user-hostile behavior on various commercial and open-source Unices, usually to serve some outside agenda.