It does look like the soundbar was a product that was developed a while ago and was waiting for the rest of the range to be finished... the lack of Arc (eArc will be in soundbars soon) and DTS decoding, lossless audio codec support... let alone compatible wireless rears... hmmm.
The wedge could be a winner... but as you can't buy two and stereo pair them does put it behind a lot of its competitors that sit above and below its price point (Devialet / Sonos etc).
Most companies are putting at least a 3.5mm input into their wireless speakers, the exclusion of those is interesting. I do wonder if the optical input on the soundbar can be streamed through out the home via the B&W mesh network?
Can anyone verify the latter?