I believe it did too. and i believe the most powerful magister are still dreamers. but dreamers are rare. we just happen to see them because we are the pc or reading stories where we meet one.
Also i want to see a grey warden dreamer.
Oh, that would be nice.
Now, if we're still sort of talking about the Maker, the City, and maybe other things...
World of Thedas also revealed that it was Andraste who told everyone that the Archdemons were the Old Gods, and that's how she managed to turn so many people away from their worship and to the Maker.
That there indicates very clearly that this was not widely known. No one knew this, though now even the Darkspawn agree that it's the Old Gods.
In short, Andraste was right about something that simply wasn't known before she told everyone. As a barbarian girl, there's no way she would even have access to the knowledge she would need to piece such a thing together.
One day she was just a good singer in some barbarian tribe, and the next she was revealing secrets that not even the Tevinter really knew.
As such, I think it would be underestimating her to assume she was just some random woman who managed to lead a rebellion against the Tevinter.
Sometimes I wonder if maybe the Temple of the Ashes is so Lyrium infused because of her Ashes being there. The Maker was supposed to watch over her after all, and Lyrium is supposed to carry the "Voice of the Maker" in it... I've often considered that maybe Andraste, through her singing, had some unprecedented power over Magic that no one else has been able to emulate.
Every magical substance in Thedas sings if you know how to listen to it. Lyrium, red and blue, sings. The Old Gods sing. The Taint sings. Power sings.
Andraste was famous for her singing, and that is how she supposedly got the Maker's attention, and Andraste was apparently backed up by convincing miracles. Really, I think she may have discovered a previously unknown form of wielding magic, and this new form of magic maybe allowed her to understand Lyrium's song in a way no other person has.
The Chantry says Andraste heard the Voice of the Maker, and if the Voice of the Maker and the Lyrium are one and the same... Well, maybe Andraste could speak to Lyrium. Maybe she was a "Lyrium-Singer", or some such thing, and through that she was able to learn what the Lyrium "knew".
What does this have to do with the Elder One?
I have no idea. It may have something to do with his defeat, because by so casually dismissing Andraste and her Maker he may have overlooked something unique about the Lyrium surrounding her final resting place, and by so doing so released something that found its way to the Inquisitor.
What this means for Red Lyrium, I can't tell. It was used as a religious Idol by those Dwarves, so... ?
All we really know here is that the Elder One seems decidedly Anti-Maker, as his first strike where he showed his hand was when he blew up Chantry leadership at their most sacred of places.