According to the logo license agreement issued by Philips here
Compact Disc Digital Audio (CD-DA)
This logo may only be used on discs complying with the CD-DA specification: IEC60908 and/or the Philips-Sony Compact Disc Digital Audio System Description (also known as the RED Book).
If any Record company issues 'copy-protected' discc that violate the spec, they should not use this logo on the packagaing.
When I was involved with pressing CDs, including this logo on the artwork was mandatory. If Philips is smart, they will enforce this clause to preserve their brand as the gold standard in audio quality.