That's an odd take.
A lot of people just like having the TV or radio on in the background and this is a cheap and relaxing kind of content to fill that niche.
Actually, I never put on TV in the background. Either there's something I want to watch or there isn't, in which case I turn off the TV.
I sometimes keep music on in the background. But this is only if I actually feel like listening to music. For instance, I can drive for hours with no music on (and no, my car exhaust note isn't very exciting).
I don't put on TV in the background either, but the other typical use case of slow TV, watching for 15 or 30 minutes or even an hour to relax and decompress very much resonates with me. Just like I could spend an hour in front of a fireplace, just watching the flames. Nothing "boring" about that.
Actually, I never put on TV in the background. Either there's something I want to watch or there isn't, in which case I turn off the TV.
I sometimes keep music on in the background. But this is only if I actually feel like listening to music. For instance, I can drive for hours with no music on (and no, my car exhaust note isn't very exciting).