The core point of this thread is off-base. DA:I goes to great lengths to discredit pretty much every aspect of Andrastian doctrine. Even the core premise of the Inquisition - that Andraste intervened in the physical world and has some physical herald - is rank heresy based on the usual Andrastian doctrine (particularly vis-a-vis their own interpretation of their absentee god). We spent the entire game seeing various adherents of this religion adopt increasingly comical and ridiculous far-fetched views (or in the case of Josephine, openly self-serving views).
The point about DA never confirming or denying the existence of the Maker (and note that the DG quotes actually related to gods generally, which DA:I already departs from by dealing with the Evanuris) has more to do with an epistemic point: that we can't prove god IRL and, unlike say the Forgotten Realms where people know their gods are real, Bioware does not want it to be known in-setting whether these gods ever exist (as gods).
This extends, actually, to the Evanuris and especially to the "stone" (i.e., the Titans). Thus far the Titans are the closest thing we see to a god apart from Solas and Mythal. In fact, the Maker is the single figure in the setting that looks like a fraudulent crock of BS. In a setting where magic is real and where ostensibly non-gods like Solas (or self-declared non-gods) can so fundamentally alter physical reality that by our IRL standards they would be gods, the Maker's total absence is pretty much a sign-post to any rational person the whole thing is smoke and mirrors.
In other words, the Dalish clearly see their gods being different than powerful mages.
Yeah. Like this one dude who literally altered the entire fabric of reality, ripped away the fundamental nature of the elves in a way that stripped them of the fundamental essence of their magic and their immortality, and possibly fundamentally altered the nature of spirits and their relationship to the physical world.
The Evanuris - including Solas - were so different from powerful mages as the Dalish understand magic there's no possible comparison. Even Solas tells us this when he talks about what the elvhen were - what they did, what they build, how they lived. We see this repeated in the (relatively intense) focus that DA:I has on the elvhen. They were beings of a kind basically impossible for modern Thedas to understand, living in a world that's largely incomprehensible to Thedosians.
The elvhen - much less the Evanuris, who stood as gods over them - were gods as far as everyone in modern Thedas is concerned, humans and elves alike.
I don't really agree, either. Aren't Ancient Greek Gods and Ancient Norse Gods, for example, still believed to be inherently Divine in nature that makes the beyond humanity? They're responsible for the fundamental workings of the cosmos. They control things like why storms happen at all, why the sun itself moves across the sky and are the ones that bring souls to their place in the afterlife, in accordance with their cosmic judgment.
And in myth and legend, even legendary heroes believing themselves to be equal to the gods was considered a fatal hubris.
I mean, in Ancient Egypt the people believed their Pharaohs to be gods, but were they ever considered equal to Ancient Egyptian Pantheon?
Second, I don't know the numbers of people around the world who will see their own gods as malevolent power hungry A-holes and still worship them, either in modern or ancient times, but in the case of the Dalish I do believe that revealing the Creators to be cruel and oppressive such does disprove their religion. They envisioned their gods as reasonably benevolent and good-natured, but this would make them monstrous impostors. And I don't think that's exactly an unusual attitude among monotheists or polytheists.
I don't know a whole lot about Hinduism, for instance, but what little I've seen of their religious materials seems to emphasize the benevolence of their deities.
But of course, someone who knows more about that can correct me if I'm off base, so I'll use another example. In the Forgotten Realms setting, all the gods are known to exist. But even though they aren't omnipotent, people still worship one or more of them. But if there was someone who was follower of Tyr, Torm and Ilmater and later discovered that somehow they weren't the gods of justice, duty and hope, but murder, cruelty and slavery or something, then his religion would be disproven. If that happened, he would then turn to different gods.
Also, I don't think the Old Gods are "just dragons." They are intelligent enough that they have communicated clear orders to both their priests and the darkspawn. Also most of them are somehow male, even though for ordinary dragons, that should be impossible. Are they gods? We don't know exactly, but I think if we discovered that they were just dragons, then I would say that they wouldn't be.
The Evanuris would certainly argue that they have an inherently divine nature. Solas challenges it - but we are talking about, as I said above, a being who altered the physical reality of Thedas in a way that's basically impossible to conceive for modern Thedosians. The Inquisitor's supposedly divine power - closing rifts - is the most basic and puerile use of a power that belonged, as far as we can tell, quintessentially to Solas. And that's a power actually worshiped as divine.
A big part of DA:I is about what it means to believe in divinity, and whether something is divine because it has some kind of platonic ideal nature of "divine", or whether it's communal faith in one's divinity that renders that person divine.
Abellas, for example, clearly believed Mythal had an inherently divine nature. All we have so far is Solas telling us he is not divine. Well, this brings us back to the spirits example for the Avaar. Do the spirits have a divine nature? Relative to humans, arguably - they have lots of features we in myths ascribe to divine beings. What does it mean for them to be "inherently" divine? That's just a matter of belief.
Beyond that, certainly the Elvhen didn't see their own gods as malevolent beings. Solas, who led a rebellion against them, saw them as malevolent. I see YHWH as an incredibly malevolent being, based on how it is described. If I challenged it and won, does that mean I was right about it being malevonent (let's ignore the implications for omnipotence)?
Edit:
Here's the best example. Is Hakkon a god? Does the fact that other Thedosians have a mechanical explanation for how it came about (a dragon abomination) make it less of a god, based on its powers, or its nature? Why does being a spirit mean it's not bestowed with a divine nature? What makes the nature "divine"?