Idk why my brain just started arguing this just as I was waking up this morning. But I recall there were some people on tumblr that were arguing that they should've replaced Cullen with Aveline or Samson. Because that would've been more interesting.
Side note on Cullen and Samson:
What's interesting about Cullen and Samson is that they're both victims. Cullen was tortured by blood mages in Kinloch Hold. And Samson was booted out of the templars for passing notes between two enamored mages. The two of them are just trying to survive, though Cullen's survival is more mental than physical (in DA2).
Samson's cynical about the templars and thinks they're chained, but he's still chained too even though he's no longer a templar. He's addicted to lyrium, and in order to satisfy that addiction he's out begging on the streets. He smuggles mages out of Kirkwall, just trying to survive.
Cullen still believes in the order, whereas Samson despises it. Even in DAI where Cullen believes he has no place in the order, he still believes that the templars are necessary. Samson, on the other hand, just continues down his path believing that the templars have fallen.
I'm gonna have to think about this a bit more, but I find it interesting how much these two have in common, yet are completely different people.
Also, I think I really like Samson.