I think you just got kicked by trolls and nothing more.
Some time ago i was kicked by a random whm and his conjurer(!) friend in Weeping, where both of them used tank accessories and raged on our bard for not using Mage's Ballad since their mana was so easily drained. Well nvm...

On the other hand, in the case of rdm, you can both kill targets one by one and you can aoe them down quite easily and fast. Of course this is not a reason to be kicked but if you have the patience to explain to the tank or whoever that this is how you play, then do so. If you end up kicked, just re-queue and hope not to meet same people, simple as that