They can seem to be, yes.

If you’re into spirituality, and believe the person in front of you is enlightened, then lacking normal human emotional reaction to things we consider ugly, evil, traumatic, unfair will be viewed as godly and enlightened.

If you’re not into spirituality, or even if you are, you believe it’s a regular person in front of you, then lacking these reactions and signs of any emotional pain can be viewed as abhorrent, weird, emotionally closed up, pathological, psycopathic, uncanny. In other words, creepy as in “it can give you creeps”.

It mostly depends on your pre-existing perception of that person.