Remember that patch that Bungie just had that supposedly fixed the Atheon cheesing taking place? It did fix it, while breaking other things in the game. And it was all for naught.
There's a new way to cheese Atheon and have him fall to his death, because players will always find a way. Don't you get it, Bungie? Gameplay mechanics need fixing. And yet you choose to hotfix something players found that works, while you continue to ignore all of the other problems in the raid. And by the time you do fix those, Vault of Glass will be irrelevant because of a new raid and new strikes. It's a clusterf*ck and I feel like Bungie really didn't think things through.
But back to the cheesing…
Essentially, after one teleportation/oracle run, you take the relic to the middle platform and raise the shield while a Warlock or Titan pushes Atheon onto the bubble from behind him. One he's on top of the bubble and pushed to one side, the relic holder should drop the shield. He'll fall off the edge. Fin.
All of that needs to happen before Time's Vengeance is over or he'll teleport back and the fight will continue.
Thanks Reddit.