Woukd you be willing to make the same claim about this universe? You could come up with the same evidence for both.
In this world, there are unexplainable things that nwe can say "it's God's will" or "this is supernatural" or "this is miracle", in Dragon Age world everything is explained or atleast there are scepticism
There are many things that science can't explain, no matter how wise or intelligent you are, there are things that you can't explain, so you might say "this is beyond the scope of science", even atheist scientist must admit that.
peoples with religion, or religious scientist will say "ah...it's the work of God!"
Faith never requires evidence, not just religious faith but faith in general. Faith is a belief, a idea which can be both weaker and stronger than anything in the physical universe and unlike what some may thin think faith is not necessarily made weaker by doubt but can be made stronger by it.
True, faith never require evidence, but all faith have basis, you might agree or not agree with some faith or all faith for that matter, but peoples who believe in religion have basis of their belief. It is not come from nothing.
As example, in the Quran, Allah command to look at everything and think the logic behind creationism. It also challenge the Pagan about the logic of worshiping stones and woods. It challenge Christians and Jews about their own Holy Books and faith. By means Muslims have cause and reasons into believing Islam. Arabia was a place where many religions meet, Makkah was a trade center and center of all nearby religions, the Arabs are well versed in many religions, Islam come out challenging all beliefs there
How abut Christians? Generally, Christianity is about seeking salvation, Christians believe Jesus sacrifice himself on the cross to save all manknd from sin. Every Christians have reasons to believe that, no one is perfect isn't it? Everyone doing sins. Despite some scepticism about Jesus, there are basis of the real person existence, and not only Christians who believe in Jesus, Muslims too. It is something that cannot come out from nothing and then become belief system. There are many folkstories in the past, none become a faith, so to say Jesus is just a story is blatant accusation. All Christians, Jews and Muslims know where Jesus crucified, where is his tomb, where he come from and what he did.
Buddha looking at life, thinking, meditating, try to find an answer, and reaching conclusion that life is suffering. Buddhist find a way to end the cycle of suffering and try to reach Nirvana. This is understandable looking at India during Buddha time. There are social class and the difference between each class was too large. The royals and elites live in luxury, while common peoples are so poor and oppressed, Buddha himself was a prnce who shocked to see the reality of his own people.Buddhist have reasons to believe Buddha teachings.
But n Dragon age...
i. no one know the tomb and remain of the alleged prophet
ii. the existence of such relic denied and forgotten by the Chantry
iii. no one have a clue who Andraste was
iv. the miracle of her ash can be contested
v. there is an unknown cult who live nearby her tomb, they are so different than the rest of Andrastenians and no one have a clue about them
vi. there is no basis of this religion other than what the Chantry have established
There is no reason to believe a God who left everyone and doomed the world...but Andrasterians believe that because of what? It is simply POLITIC...everyone vs Tevinter/Mages. The Chantry originally created to gain support from the mass to against Tevinter Imperium. To counter this, Tevinter themselves establish their own Chantry, just for the sake of politic. But both of them have no clue about the very person they are worshiping and adore so much for thousands of years...and then they have another rival, the Qunari and Elves, the established religion used to gain support against these too.
By means, it just a made up religion by some elites, they are clever to use excuses to fool the mass who seek the truth by simply saying "The Maker left us..."