Right, but that CC is pretty rowdy. I think it is definitely an alternative, even if only to supplement your style. In Arena's I think it could be quite handy on some maps that are more open. Locking down a healer for 6 seconds or so means whoever you are blowing up is going to die.

I've only done 2 5v5's with my group lost both but they were learning experiences. The second run, I picked druid out of a druid/priest healing combo and when my paladin went down, priest was oom and druid alone cannot heal through the DPS. This took maybe 10-15 seconds.