I hate not only the retcon of Saint and Osiris because of some writers headcannon before he joined Bungie but also the retcons in this episode that make Dawn pointless and ruin the whole "Perfect Paradox". Maya Sundaresh would have a more compelling motivation if she was attempting to rewrite history and return the universe to the Golden Age, as it could create an interesting element of if the outcome she could produce would be better than what we currently have. But no instead its about how she is trying to find her dead wife or something and simulating a bunch of her and killing them if they aren't "the real Chioma" so dumb and boring. The whole Choral Vex were a fantastic idea to give the Vex some identity but instead of leaning into musical themes or something as their identity to set them apart from the rest of the Vex they are just Precursor Vex and are a complete waste. What should be happening right now in the story is the enemy factions should be building their armies and strength to fill the power vacuum of the Witness and we should be having all out war across the system, and it should actually feel like we are at war instead of being told we are. This was a major problem with TFS at no point did it really feel like The Witness was "throwing everything it has at you".