Zerg raids were dumb back in the day. In the current instant gratification age, they are even more retarded. The reason most games go the zerg route is because its easier to do that for class balancing than, say, making a raid for 10-12 PCs and have it not require stacking optimized classes. My best EQ and early WoW experiences were doing things with a couple groups. It cuts down on the drama and eliminates the need to fill in the body count with whatever retard you can get to show up and hit an assist key or (more often) count to ten and press heal.
Yes us filthy casuals gave up on raids due to the ludicrous time and body count requirements that we no longer have time for, but the young ADD generation is not going to sit around for that shit anymore, either.
What if we had some Dance Dance Revelation to it and give you 10 epeen achievement points and tell you that you are a good boy?