My first run I beat it we did it the normal way. My second run we tried this strategy. This is definitely not a cheese. There is no rule that says you have to kill ogres at a certain time, just have to be down so you can ignite the lights to damage oryx. This strategy is still difficult, I was the runner in my group and when I grabbed the Aura I would have 2 ogres waiting for me right next to the vessel. The people on the platforms had to deal with the ogres and trying to stay alive. Everything has to still be perfect and is still about timing and communication.