This doesn't excuse bad play. In fact, it's entirely counterintuitive. If they wanted to get out faster, then doing a proper rotation, DPSing as a healer and etc would accomplish that. None of this is context, it's simply bad players refusing to listen because they cannot be bothered. Per the quoted example, a Dark Knight not using Darkside by level 60 is lazy. It takes two seconds to read the tooltip yet they haven't.
