The benefit is that people who only do pulls don't pull properly for a variety of reasons...use a weight you can PC and just get better at it. EDUCATE yourself on it, learn to full Clean also.
IS IT REALLY THAT hard to spend 15mins doing some bar work at the start of your sessions? It's BS that people can't spend 15mins doing some bar work to improve themselves.
If you really can't be f0cked to do PC then do Clean Pulls.