Go to expression editor for your logs and use this to see who breaks CC:
Code:fullType=SPELL_AURA_BROKEN_SPELL and targetreaction=REACTION_HOSTILE
SoC can break it if you have MF on. Not sure what else does it. Side note: Does the stun from Axe Toss of a Felguard summoned with GoServ stun an add and then break the CC?
I've never done Wind Lord LFR with CC's so I'm pretty sure you were not the reason your group wiped.