This will come across coarse, because viewing habits vary greatly from one person to the next; but I could care less if a lot of channels disappear as the broadcast/TV landscape evolves.The subscribers will lose. If you look at the 200+ channel subscription packages MVPDs provide it is easy to list 100 channels that you never watch. Drop them all and theoretically you could reduce bills by up to $50. But the "never watch" channels vary by subscriber. There is a good chance that when the MVPD model dies it will take several channels you do watch with it.
Similar to the rise of regional sports networks, college conference-specific channels, etc., we've seen a huge rise in the number of genre-specific channels; the plethora of Discovery channels, MTV 2/Classic/etc., Nat Geo Wild, Hallmark's movie-specific channels, all-horror movie channels and more. And just as we heard for years that "some people didn't want to pay for sports", I didn't want to pay for channels that I never touched. Even as I subscribe to YouTube TV now, the wife and I regularly touch maybe 20 channels a month. And her viewing habits definitely do not mirror my "80% sports, 20% everything else" viewership.
For decades, we have all paid for content we never utilized, wanted/needed, or maybe even knew was there. And that bubble kept growing and growing, until maybe it's met its bursting point. Are we really losing if we lose things we paid for and never used, anyway?