So do you listen to jazz from the 50s and 60s? I’d assume a lot less visual performance from this times. Which happen to be the heyday of jazz. In my opinion.I firmly believe that listening to music without seeing the musician should not be done -at least with jazz. I can only do Diana Krall justice seeing her singing while playing the piano - which is much harder than singing standing. Jazz musicians are characters and part of the music. This forum seems to have a majority of classical music fans which may explain while people are not that fanatic about it.
And I think the sound is better when the picture is better - hence Blu-ray concerts are good. There is even a 3D jazz concert on Blu-ray.
And because seeing fills gaps in audiophidelity the audio equipment can be lees expensive, add Multichannel and it can be even cheaper on a per unit base.
Sure, background music can be without a video. But this a bit like eating while watching Tv or driving - that does not do the music (food) justice. Listening&Seeing should be an event and reserved for value time honoring the music and the artist. Like a real concert.