uh…no.
mail armor rarely EVER actually LOOKS LIKE mail armor.
I know…I run hunter a lot. lol
There are a FEW sets that actually look like mail armor.
And no…its NOT just specific sets.
There are tons of individual sets and even pieces…“plate” chest / robes, for example, that look no more plate than cloth does.
Its not just specific sets and if you think it is you clearly HAVENT browsed thru wowhead armor pages.