Companies have no clue about accurate scale. Even heard some call their figures - full scale figures - implying that they are actual 1:1 scale in size, though in truth, it's simply meaning that it is a full figure and not a bust... and other's calling their stuff 1:1 scale, as with this Child's Play doll, when clearly it is not... and yet again some calling Studio Scale items for 1:1 as well.
They should really be taught a lesson about scale, as writing the wrong scale on an item really makes them look ignorant and stupid.
Scale is ALWAYS meassured against how large it would be in reality. Doing it in any other way simply makes it stupidly inaccurate and confusing.