Sophie was an example. I didn't see it necessary to talk about all the artists involved in PC Music to make the point that the producers on the label pioneered the sound.
Look at the credits for her albums. She had producers and writers credited on every single song. This IS a lot of help. You're acting like she just did a couple of collabs with AG Cook and that's it. She had many different people helping her on the actual composition and production of every single song.
This is the point being refuted -- that the popstars are geniuses responsible for carrying the burden of their rise. It's mythology. The reality is that they bring performance skills and charisma to the table, some non-awful lyrical skill, and then the lion's share of actually making the music work is done by producers and writers. They would be nowhere without the producers. The producers would be nowhere without the popstars. But it's the most common poptimist mistake to confuse the popstar's charisma for the producer's mastery.