I did a little reading on the maiden here: [url]http://www.wowwiki.com/Maiden_of_Virtue[/url].

Last night the healers were having trouble healing after a repentance because they were getting silenced.  I was having the same problem.  According to this wiki page, it's not really a silence, its the aoe waves that she does that interrupts anything but instant cast spells.  So that means when the MT drags her over to wake up the healers, he needs to drag her back to the center after they are awake to keep the aoe interrupt off them.  Also the healers can run away to get out of the effect and start healing.  

That seemed to be the main problem last night, recovering from repentance.  I think once everyone knows to stay out of the aoe before casting, we can probably down her.