Unfortunately there's been this longstanding stigma in the community that while Monks (and now Samurai) are great at single target attacking, they have no aoe potential. I can't count the number of dungeons I went into as Monk that started with the tank giving the "Oh, we got a Monk. Looks like no aoes" speech, only to be shocked when I was melting packs of mobs from the continuous aoe blasting. This of course leads to people single targeting packs thinking they're doing better that way. I dunno if the community as a whole will ever get over the notion that Monks area only for single targeting.