“Pure Audio” Blu-Ray discs – what is the point?

Recently, the recording industry (and in particular Universal Music) have announced the joyous news that you are now able to get “High Fidelity Pure Audio” format (that’s an audio Blu-Ray disc to you and me, only playable in Blu-Ray players), supposedly in up to 192kHz/24-bit audio which, it is claimed, will sound vastly superior to the 44.1kHz/16-bit audio CD which has been around for 30-odd years already.

Apart from perhaps the ability to release multichannel recordings on a physical disc without Dolby Surround encoding it (which could be done with, amongst other things, the FLAC file format anyway), what is the point of using such a high sample rate?  Have they not read http://xiph.org/~xiphmont/demo/neil-young.html yet?