You know - I wouldn't like to be the first to start with that policy - but if some law is going to be applied in the future, why not

Somehow I think that such move would just make people think others are just better because of marketing.
Speaking of which, "DVD Quality" and "CD Quality" are relative terms like I said couple of times before - they are not defined by some law or standard so everyone could use them for their products (mp3 / 128, aac / 96, wma / 64, he-aac / 48)
I think that product with following claim:
QUOTE
Our product achieves ITU-R score of 3.5 at bit rate of 48 kb/s, by using xyz1, xyz2, xyz3 44.1 kHz clips from CD-ROM, with 8 expert listeners by using ZYX equipment ... (MUSHRA table following) (Friedman Analysis Results) (Graph)
Just won't sell among average users - but it might look very professional on the other side

If you ask for this figures, you usually visit sites like HA

On a retail box, or product website people expect just company tech data with short description of quality that could be achieved. I can't phrase quoted sentence in "easy" language except CD-Like quality.
Plus, I am quite confident that I could easily pick 10 untrained listeners that won't hear significant difference between HE-AAC @64 and CD sound on a typical home system, so the claim still might hold even "legally"