I found positioning helped, to ensure there were no long runs to the free people. I also assigned a dps shaman to healing when the healer was wrapped, and made sure the tank was full health before the aoe stun. The resistances from druids MotW helped when chars were shot out of totem range.

I didn't use click to move, but I think that would be great here.

I got two or three more wraps after she enraged, but it did seem to stop at <10ish%.

My priorities were to get everyone back to group and heal tank before stun.