It's not just my experiences. It's other players I've observed.
My opinion really turned when I saw a vid with some Juggalo looking Qunari in facepaint, who didn't believe anything she said, having sex with her.
No actual author would write a scene like that. It's narratively implausible and stupid. Yet it's come down to this. She's become a tool in everyone's hands. The people who like her, the people don't care much, the people who think it's all for the lulz.. Anyone can achieve with Cassandra. She likes you no matter what, as long as you game it.
Err... so we agree on that regard?
I think i presented my argument as to why Cassandra fits as my Inquisitor's love interest, i am willing to say that said story was much more belivable than pretty much any other Bioware Romance (Viconia DeVir is the exception).
Sure, i completely agree that a Qunari or a Mage/Tevinter supporter extremist Inquisitor would require way more additional dialogue (that i assume isnt present in the game) to make a romance work (if at all).
But on the chantry faith alone? that isnt a role playing barrier for the romance.
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As for why would someone be a agnostic Inquisitor in role playing terms, i like to think my character has had enough history lessions to figure out that established institutional religions are just a way to manipulate people (since my character is Human Noble, he of all people, should know that).
My perspective is that Gods/Spirits/Demons are pretty much diferent beans of the same sack, Thedas should care about itself more than with the Fade or other outworldly business (as Cory seems to do). Now that demons are spawning everywhere, its the perfect time to show how innefective pure faith can be and that we should have faith in ourselves (as in, people of thedas) before everything else.
At least thats how i role play.