Thank you SE (super dooper spoilers)

[HyoMinPark]

The light isn’t good if there’s an overabundance of it. Should the Source have come under fall of an excess like the First did, nothing would have changed from Shadowbringers, so your point is kind of moot.

The only reason I accepted the “Hydaelyn has always been good” mantra was because Venat was written in a spectacular way. Otherwise, I find the black-and-white “Hydaelyn good” “Zodiark bad” narrative dull and predictable.

Moral ambiguity is intriguing. Predictable plots are not. To be honest, I didn’t find anything about the ending particularly emotional except for all the stuff with Hermes, Meteion, and the dead civilizations. The Scions sacrificing themselves for the sake of our progress through Ultima Thule wasn’t that interesting because I knew they weren’t actually dead. There was no emotional weight to that plot—which was disappointing following the ending of Shadowbringers where we all but became a monster, found ourselves sympathetic to Emet-Selch and Elidibus, and had our emotional journey with Ardbert. Instead, we had another fakeout of Scions dying and an “epic battle” with Zenos (which completely ruined the final scene with Meteion for me). Zenos has about as much emotional depth as a puddle on the sidewalk in the middle of a hot summer day, so…

What is challenging about ambiguity? I didn't even make a comment on the quality of writing, just the subject matter.

Ambiguity adds depth. When you are faced with making a decision that isn’t black-and-white—such as a decision made “for the greater good” that also has dire consequences attached to it—it adds emotional depth to what you are doing. It’s also far more realistic than “this answer is always right” or “this answer is always bad”. Actions in life always come with consequences—and a lot of the most impactful ones are not purely good or purely bad. That’s unrealistic, and, as I said before, makes a story predictable and dull.