Your argument applies equally well to any screening procedure - e.g., college degrees.
Do you believe that requiring/favoring people with college is also a bad precedent that needs to be stamped out?
Do you believe that requiring/favoring people with college is also a bad precedent that needs to be stamped out?
What skills do you really mean to ask for? If you waste time asking for things you think imply those skills other people will be out-recruiting you.