I understand what youre saying with this post. Some people dont understand their role.
On the other hand, have you ever seen Carnage Marauder giving you 3-5 secs to make some initial threat, than leaping on the target and pulling boss from you in next 5 gCDs? We can QQ to each other. But I can assure you, bad players wont read this. And good players know what to do.