This is a very unlikely output when run from a script using the /bin/sh interpreter on Debian, though.
If that is the output you've gone out of your way to create an alias in a script, in which case it's reasonable output. It is what will happen when the script runs that command, after all.
I'm certain there's masses of code that depends on `which` responding the way it does and scripts with aliases in them regardless of whether that was the right way to do it or not, so your point is probably irrelevant in the grand scheme of things. Think about all that enterprise install and setup crap. People still depend on that spaghetti trash working.
