I know how to use it, actually. I just prefer not to. I've never had complaints and it really makes little to no difference. I rarely have to autoattack because I don't really ever take aggro. You seem to be under the assumption that I use it all the time.
You understand that autoattacking isn't good for your DPS though, right? And that pre-emptively using Quelling Strikes will help you avoid having to do that, regardless of how rare the situation is?