Having means to shape the fabric of the world on a grand scale, as Solas demonstrated by creating the Fade, could be classed as having divine powers. Granted, we don't know how he performed that feat, still if we consider other members of the pantheon as capable of similar (or even lesser) influence, we might describe them as supreme beings=>gods. The question then is whether their powers are innate to them or derived from something bigger.
But a god doesn't have to be a supreme being.
The Avvar look at spirits as gods--not just the major spirits, but minor ones too. You may or may not agree, but there are extant cultures here in the real world where people would agree with the Avvar. And the spirits even answer the Avvars' prayers! They represent something--each spirit represents a concept--that they also embody and perhaps even encourage to continue existing in the world. You can imagine there are probably spirits of things other than just emotions, if there are spirits of winter and warfare like Hakkon. Spirits of fertility, spirits of health, spirits of the hunt. Appealing to them actually does some good, so even if you didn't feel they were gods or worthy of worship, it wouldn't hurt to be respectful.
Few people are going to argue that if Joe Schmoe down the road is worshiping the weather girl, that the weather girl is actually a god. Maybe she's a god to Joe Schmoe's mind, but to the rest of us she's clearly human--even if he convinces us to worship her, she'll still age and die and live out a relatively ordinary life. So there is more to it than simply what one worships, but yet godhood doesn't necessitate being a supreme being, or omniscient, or perfect.
Back to the elven gods being a subject of faith vs. doubt--just because they were cruel doesn't mean they weren't potentially gods. And if they were able to meddle with the fabric of reality (it seems they were), were immortal (we know they were--Solas couldn't risk trying to kill them), and were leagues more capable of supernatural feats in magic than anyone else (which they were, or why would anyone worship them if they were barely more powerful?) then maybe if they weren't gods, they at least weren't "just" elves.
Solas looks extremely powerful to us at this point. But we do not know how he compares to the power he used to have, or how his current, or former, power compares to what other ancient elves have or had in the past.
Given the ancient elves' particular traits, modern elves could readily see every single one of them as at least a minor deity. They wouldn't, because apparently they agree that they were once all immortal (interesting things could be done with that if they didn't believe all elves had been immortal, but that ship has sailed). Also, all ancient elves were mages.
The pantheon, though: Those were the first elves, from what we can gather. They were much more powerful than anyone else (we don't know whether that's a consequence of being first, and gathering that power somehow, or if it's by their natures when they were spirits, or something else that maybe we don't understand yet). Even if they aren't truly gods, they might be one of the closest things to it in all of Thedas. But it certainly is possible to view them as gods and, I would argue, one would not be incorrect to do so. Remember that Solas speaks from the position of someone who was on an equal level to them. Do gods seem godly to another god?
There's room for faith in them as gods and there's room for saying, "No, Solas is right and they were just more elves." Same for the Titans, if one were to want a dwarf to become religious. Qunari don't have a religion but a philosophy instead, so I can't speak about their gods. And as for the Maker... it can be argued either way because we haven't, and likely never will, met the Maker in person.