are you having issues with the tethers? if that's the case, it's mostly a matter of making sure everyone else other than the people doing tether is on the other side of the platform. like if you know it's going to do blue tether, everyone who's not in the tether go to the orange side, etc.
Yeah we keep failing at the tethers. No problems with my gambit teams banking motes and smashing shields, but the tethers just don’t want to work right, especially when trying to start the damage phase. Up until this it was an easy 9/10 raid for me, the consecrated mind fight being a highlight.