I love this post because it gets at a set of phenomena -- distraction, fragmentation, hurry -- that have had an impact on music but also on reading novels, watching movies in a single go (at home), and other things. Some of my favorite writers about technology such as Sherry Turkle discuss the implications of these trends on something which bears on empathy (in short supply) -- viz., conversation.
Daniel Boorstin’s piece "Making Experience Repeatable" documents the rise of just recorded music is very eye opening. It illustrates how the magic of the transitory experience of a musical performance was changed forever by the technology of recording. (Benjamin called this the "aura".)
So, technology has been at work a long time, changing how we experience music (and other things). When I grew up, many people did not just sit and listen to records. They put the radio on, and it jumped from song to song. Listener choice was not in command then, as it is now, but you would have favorite stations and also you could call the station and request a song.
One question I would ask the OP is what he/she thinks is lost by this "new equilibrium"? As I understand it, the artists now have a tougher time making a living, so that’s one thing. I also think the ability to stick with something longer -- even if it’s just listening to one side of an album -- benefits folks more than the dopamine hits which come from jumping from one thing to another. But hey, maybe we just like dopamine now. Evolution will sort out the survival pluses or minuses of marketers and advertisers’ use of short attention and limited memory spans, I guess.