Note that it speaks of the “official version” in the next sentence, which seems to me like there will be inofficial versions which requires a more permissive license
It doesn't necessarily require a permissive license. For example, Winamp could be willing to license the code for non-official versions or for integration into other projects, but at a fee and with limitations set by Winamp. As I've said in other comments, the press release is vague, and I think that's likely to be intentional ambiguity.