I mean this is click bait - so rather than give them the satisfaction of getting a click from this post, then you'll find the article by searching for B&W CD in google. The gist of their view is repeated verbatim from their website.
The bigger issue for us is the sound quality. CDs were launched to a huge fanfare that suggested they offered music reproduction at its finest. They didn’t. Compared to the high-resolution streaming services that are available they are distinctly lacking, and to most ears they don’t sound as good as wonderfully warm vinyl.
So, if you care about building an affordable collection quickly CDs are a good option. If you care more about absolute sound quality, you will want to look elsewhere for your source.
And in their spirit of subjective opinion being passed off as objective fact, I'm happy to declare that if you care more about absolute sound quality, you will want to look elsewhere for speakers than B&W