I'm amazed at how people think "rogue" is synonymous to "infiltrator". It's not.
And I am even more amazed how people can seriously even TRY to argue that being a qunari rogue is any different than being a human, elvhen or dwarven rogue. You think the guards will be extra alarmed just because the guy/gal that's currently sneaking around undetected through their base is a qunari comapred to a human? Or do you people really think than a human rogue could just "blend in" with the other human guardsmen that just spotted a guy/gal sneaking through hidden castle vault #3?
There is no difference if your rogue is sneaking around undetected and there is no difference when you were spotted. One leaves no one the wiser and the latter will end in a fight anyway. Because last time I played DAO and DAII, guards wouldn't let my human rogue just waltz around just because he was a human.
Will someone please tell me what inane abomination of logic concludes that there's any significant difference?