Again, a lot of words with definitions that intelligent people can disagree on. This is why there are so many different operating systems... and implementation

Again, a lot of words with definitions that intelligent people can disagree on. This is why there are so many different operating systems... and implementations of echo.c. So to answer your original question more directly : yes, there are many instances of the standard command-line tools available on other UNIXen being substantially better than the GNU userspace tools. In my opinion. You may disagree, but who is to say?