the Issue isnt the system it is you, Im pretty sure we talked quite a bit about this on core where you stated you had never seen it used nor had you used it. And again you are trying to take the approach of elitist where somehow you have this nagging fear that some idiot is going to join your party and the server is gonna blow up because of it.
People dont PUG NMs, and any idiot can function well in a grind party. This game isn't rocket science not any one person is going to have such a great effect on any group that you have to be so damn picky. Quit trying to use worse case scenarios that will probably never happen as a basis for argument.