As I read the article, I looked at all of the advances...they all deal with video quality. The main reason that many people aren't converting to streaming is not the video quality...it's the audio quality. Audio tends to take a back seat to video, that's why many of us old on to our physical media.
Audio seems to be stepchild of video, we have 4K streaming but Atmos via streaming will be or is packaged into a lossy Dolby Digital Plus container (if I'm not mistaken)....hmmm.