Nothing in DAI has disproven Andrastanism.
Nothing in DAI has proven Andrastanism.
Stuff has leaned more towards the Maker not existing.
Stuff has leaned more towards the Maker existing.
Stuff has learned more towards the Maker technically not existing, or rather technically existing in a way beyond our understanding.
DAI focuses more on concepts of faith and hope, and we can have our Inquisitor embody it towards the concept of the Maker. Wait for a future game with different themes if you want more substantial lore on whether the Maker exists (even though the word so far from Bioware is that they'll never outright prove the Maker's existence).
DAI does have the plus of giving us... material. We have not just the more common knowledge of Thedas (DAO), or the opinions on the ground (DA2), but more specialized and exclusive knowledge that may inform us (DAI).
While the elven gods seem more explained and propped up, they also have been put down..
While the Old Gods are explained as powerful, they ALSO have been put down.
I don't think the Maker will end up escaping this treatment. It may end up being the strongest force in Dragon Age, yet still have elements that both disprove much of the Chantry and only 'prove' the Maker's existence in a rather more subjective way than the Chantry likes to depict. Still a magical force though, and still possibly the most powerful single magical force in Dragon Age, and still possibly a force from beyond the known Dragon Age World, so yeah. Whether one could legitimately call it 'The Maker' may always 'depend'.
For me, I don't believe in The Maker. I believe in A Maker. What that Maker means is still something I'm waiting for more lore on. DAI wants me to hope (as an option at least). Okay. I won't be generic-response Warden, and I won't be Maker-disregarding Hawke (he doesn't seem to really care tbh), but I'll at least be a hopeful Inquisitor. I 'hope' that this leads to something greater, and more illumination on the nature of the Maker, which has to be something, considering the bizarre fabric of reality that makes up 'Thedas'/'The Fade'.
One big thing that DAI has done is shown that mainline Andrastanistic assumptions are pretty much wrong. That much has changed over the centuries and messages have been distorted, so yeah, we can pretty much not ally with the 'Current Chantry' (as of the start of DAI I mean). That's the Inquisition's whole deal. But it doesn't mean that Andrastanism itself is wrong.
My main male human mage Inquisitor is a skeptic but not utterly against the role and beliefs given/presented to him. Agnostic really. Reflection of me, etc. But while he starts off unsure, he becomes increasingly negative about Chantry concepts and instead tries to look for something more (cue Solas and the Elven act of the plot).
I just made a (Nightmare Mode) female dwarf warrior Inquisitor and she'll be an interesting one. She'll be not really allied with the Chantry or care so much about this surfacer stuff (though she's somewhat used to the surface), yet she'll be gradually swept up in the journey and gain a sort of faith. Maybe not utter adherence to Andrastanism, but at least A faith that the Maker and Andraste were involved in what has happened.