Before in the industry, there were filters for everything. Like when an artist recorded in a studio there was a producer that made decisions. Then the producer took it to the record label and they made decisions. The record label took it to the distributor, and they had their opinions. Not optimal for sure, many of the complaints back in the days were a long time between when the artist had recorded a song until it actually was out on the market. Another complaint was that much of the artist's work was changed by different opinions, right or wrong.
All that has changed. Today an artist can record in the day and get it out to the audience the same minute the song is finished. That is why the demo is no longer exists. Demo was the song roughly recorded for different people in the chain to give comments, so they didn’t have to get back and do it again. Today with all digital it’s so easy to change you consider everything release ready, the demo is gone.