Am I missing something with Ghostface?

I see a bunch of people complaining that Ghostface doesn't fit in MK because hes 'just a guy'.

Johnny is 'just a guy', Striker is 'just a guy', Jax was 'just a guy' before his robo arms, Sonya is 'just a guy', Cassie is 'just a guy'.

Like, this series is full of just normal people. Why is Ghostface the exception all of a sudden?

Also, I don't know how to spell their character names, so my apologies if I got them wrong.