You're right, I didn't mean to say that it actually mentions throat slitting, what I am saying is that the game implies that the infiltrator is trying to assassinate you in your sleep. You just happen to always wake up, or the infiltrator is heard by the guards, etc. It is implied that if those things don't happen, the infiltrator is going to kill you in your sleep. He is obviously not trying to sneak into your tent at night, with the goal of waking you up and having a knife fight.
My point is this: they don't fit in. Its awkward. There is no good way to pretend infiltrators are what they are supposed to be as they are currently set up in the game. Nobles who try to assassinate people, are open about it (usually), and have a 100% fail rate.
Stop making assumptions about the fail rate because you are afraid of getting stabbed.
