Yeah, I don't think it is the same, but if you subtract the Solas factor than there are a lot of similarities to any quizzy and Andraste. No matter the choices you make, you are shaking up the balance of power just like she did.
Let's pretend the Maker doesn't exist and Andraste made it up. Well she had an excellent reason for doing so and honestly one that Solas would agree with. People were worshiping the Tevinter old dragons as gods and that was not working, because in the end the gods were acting like men. But if you place an unreachable and untouchable deity as your only god, then it is easier to swallow and there is less of a chance for corruption. However, people are always people and the Chantry found a way to corrupt itself. Andraste would be ashamed.
The Old Gods were definitely real. Were they really gods? Maybe, but they can be corrupted. So too can the elven gods, and we also have seen evidence that they exist--but are they really gods? Solas doesn't seem to think so, and yet he also doesn't put them on a level with elven nobility. So, something more than powerful elves, something less than gods. I think that they are more than spirits, but their body-hopping can also be duplicated by certain spirits. Ageless, but not infallible. They can still be killed, but it may be that they will find another host, like certain elven gods.
It would have been clever of Andraste to push the idea that she was somehow holy. HOWEVER, I have gotten the impression that she did not set out to prove that she was holy. She was just a person who went out into the world, fought wars, and got stuff done. Evidence suggests she may have been an arcane warrior, but, having been a slave in Tevinter, she'd seen the worst of how magic was used to rule over people. She may actually have meant, in her "magic is meant to serve man" statement, only that it's preferable magic be used to improve lives, rather than use blood magic and fear to command people.
If Shartan were actually Fen'Harel, it would explain... a lot. Though, given Solas's distaste for humans upon waking, I'm thinking it wasn't him--he'd had limited to no contact with humans prior to entering his sleep (uthenera, which is normally permanent--but evidently it can be left?).