But that would be a 'real' security measure. Security by obscurity would be to park it 3 miles away where noone would think you parked it and relabel it as a Skoda.
No, it's a perfect example of security by obscurity. It's just a button, anyone can press it, no key or anything else needed. It's just different from the other cars, so it'll confuse a thief who is following a scripted runbook on "how to steal Kia". Hopefully enough that they move on to the next car.