I enjoyed reading the posts but if I try to take it seriously I can't buy it. The argument stretches "Unix philosophy" so far that Lisp systems end up being a better fit for it than Unix itself. To me that just makes the whole thing lose meaning.
Emacs doesn't particularly fit the Unix philosophy and that's fine! Emacs is a modern day Lisp machine that does an excellent job at integrating with Unix-like systems. It's best to embrace and love it for what it is.
I will go further and say that no GUI or TUI application fits into the Unix philosophy. This includes almost all text editors. I don't consider Vim to be a better fit than Emacs and even vanilla vi is a major stretch unless you only run it in ex
mode. The only text editor that more or less fits is ed
.