If this happened healer would by far be the easiest class to play... Spamming heals requires absolutely no skill. No thank you, learn to play your class correctly, managing your threat is a huge part of being a healer. Also, your time could be better spent than standing there shooting off unnecessary heals, like maybe doing some damage? If you're unable to handle threat gen as a WHM, then maybe you should try SCH instead. (Or you know, don't be a healer if you can't handle it.)