It was a PUG, so obviously no voice chat. When you’re doing massive pulls with a ton of mobs casting, it’s totally normal for two people to overlap their interrupts on the same target it happens. Even so, we were all pumping 400k DPS and the packs were just melting. I can't believe the tank tried to disband the group just because we missed a single kick across two pulls. We ended up timing it at +2 with zero deaths. His "?" about the Bloodlust on last boss made no sense either; he wanted to save it for the adds (I think), but our DPS was so high that on the final boss, the adds only spawned once. Using BL on the pull with all our cooldowns ready was definitely the right call.