I think that started earlier when popular music productions was taken away from musicians, who - maybe because of bigger skills - experimented and found new ways to express themselves, and put in the hands of people who were just able to whip up a quasihit song with the clicks of a few mousebuttons - leading to somewhat popular, but ultimately forgettable songs. Everyone still knows music from the 1970s, but noone in my social bubble could tell you what the big hit of 2017 was...