here's where the role-playing aspect grates my nerves in DAI: Thren. Every time she asks if my character was at Ostagar, my god I want to scream "YASSS YA BISH!"
i mean...i know Quiz wasn't there but lordt...hate her trying to feed me that shullbit about Loghain.
I had a long answer to you, then my internet went nuts and refused to send the ones and zeroes to BSN -.-
Let me do this quick then:
Solas says he saw "a weary general saving whoever he could from pointless slaughter" at Ostagar - could this be Loghain? I believe he did what he thought best for Ferelden.
Also, if he's the Warden contact, and you save Threnn in Haven, she mentions he remembered her. Where she served, what her name was. And I think she also says he casually spoke with her. He had to be a good commander once upon a time. One of the best, perhaps.
Her loyalty to him is inspiring - and she's equally loyal to the Inquisition. Such loyalty also doesn't come cheap. He had to deserve it.
The man's very grey, but he has his white moments. I disapprove of his actions in The Stolen Throne, in regards to Katriel, and I disapprove of what he did at Ostagar. But he's not an entirely black character.
Sadly, he's proven that his actions weren't the best nearly a year later.