Exactly. Their ten-point scales have no obvious relationship to the underlying measurements, where measurements are even provided, and they rescale the points every so often. (They call this their "methodology version.")
I've noticed that, when a new (expensive, high-commission-generating) product comes out, it often has middling scores at first, and then, a few months later, they've revised their methodology to show how much better the pricey new product is.
I've noticed that, when a new (expensive, high-commission-generating) product comes out, it often has middling scores at first, and then, a few months later, they've revised their methodology to show how much better the pricey new product is.