I think it requires some mental gymnastics to say that you shouldn't be surprised that a term that etymologically means 'according to the direct and actual meaning of the words themselves' could be reappropriated to mean, in effect, the opposite - literally almost nothing, a blank hyperbole - taking more purpose in its effect on the rhythm of a sentence, than from any of its dictionary definitions.
Just as surprising to me is people saying the word "silently" aloud. As though they don't know what it originally meant!