Reminds me of something Jerry Krause (GM of the Chicago Bulls in their heyday) once said. He was talking about a particular player - may have been Tony Kukoc, I can't remember - but the player had an unusually long neck. Which is why Krause said height measures are largely irrelevant, whether it's a too long neck, too big a head, whatever. He called all that "wasted inches". I don't think height is totally irrelevant* and we should rely completely on say wingspan, but wingspan is more important.
*Hesitant to disregard height completely and this example pops in my head. Take Eric Bledsoe, 6'1 with a 6'9 wingspan. Who would you rather guard an opponent that is say 6'10 - Bledsoe or someone on your team that is 6'9 with a 6'9 wingspan? if wingspan is all that matters, and height doesn't matter at all, you'd say either answer is the same. But no one would say that.