You could randomize the order of the labels and it would still be true. The main difference between lewd and non-lewd isn't the amount of clothes, but the way the clothes hug to the body. If you're confused how a person would ever get their body into their clothes, they're actually already naked and the artist just doesn't want to admit it yet.
So in a way, it's the Dark Souls armor that is the real fanservice here.
But the clothes on the far left are not unrealistic to get into: they could either be a bit stretchy or if not stretch they could have some string in the back to tie after getting in to then make the clothes hug the waist. I have both types at home but the second type is from a ren-faire