yeah FUE is not "scarless" despite what people might say.
but i have seen great FUE results where even shaved slick bald, you can't see the FUE scars even on a great quality photo (granted real life might be different at certain angles).
that FUE picture the guy got butchered by a too large punch size.
i think the point in FUE is that grown out it looks much better, as if you grow it out a small amount the dots are disguised. whereas with a linear scar you can clearly see it as it is all joined up.
i would never advise anyone to get a hair transplant if they want to shave slick bald. I would say "what's the point in getting the hair transplant?" - now we have SMP for people like that