I have this hypothesis that at some point quite late in the writing process of Veilguard someone came in and pushed for the moral complexity to be taken out of the game. Because there are several plot lines which seem like they were potentially intended to be more complex than they ultimately were:
Isseya and the griffons. When I first played this I assumed that the punchline would be that she stole the griffons because she didn't trust the wardens with them after what happened - then deciding what to do about her would have raised interesting questions about war, sacrifice, the greater good etc. But instead there was this reveal that she was planning on blighting them, which makes no sense at all and feels shoe-horned in just to make it clear that she is Evil and Wrong.
Ivenci feels to me like they were originally intended to articulate the very reasonable point that it's not good for Antiva to be ruled by a group of unelected assassins - thus setting up an interesting chance to reflect on the nature of the Crows and the necessity of working with groups who do harmful things. But instead the Crows have to be the good guys so Ivenci is made into this weirdly cartoonish villain to make it clear that they are Evil and Wrong.
Relatedly, Lucanis' plot line feels like it was supposed to culminate with a reflection on his relationship with the Crows and the abuse he suffered, probably with the option to turn down being the First Talon and maybe even leave the Crows. But because the Crows have become the good guys this never happens and hence his whole arc feels quite inconclusive.
As this post points out, it feels like Emmrich's lich choice was intended to be darker and for the lich route to be genuinely a selfish option, but instead it's become this somewhat toothless 'dilemma' where both options are right and you never have to feel bad about your decision.
The initial ritual feels like it was a set-up for Rook to unintentionally do terrible harm while trying to stop the world from being destroyed, thus offering the opportunity to reflect on the dilemma that Solas faced in making the Veil and to understand the moral complexity of his situation. There is apparently even cut dialogue from the regret prison on this topic. But instead no one ever blames Rook and Rook is not allowed to blame themself at all, because they have to be The Hero in an uncomplicated way.
I don't know; it just seems to me that there are all these fossils of a more interesting game in there and they've been sort of clumsily written-over because some exec etc wanted the game to be less challenging or targeted at a younger audience or something.