Wrong. Wrong. Wrong.
This is yet another inaccurate music myth! Lemme explain..
“Girls” incorporates numerous samples, and in the world of revised copyright law— if an artist samples you (in most cases) you are given a writer or producer credit. Hence.. 6 writers, 4 producers.
In this case, even the sound engineers and their assistants got production credits, this isn’t common but it’s nice that they got credit for helping out, right?
Queen’s Bohemian Rhapsody uses no samples. Hence..1 writer, 1 producer.
Also check the liner notes, the writer is listed as “Queen”, if they subbed that out and gave each band member a writing/production credit (which is common) it would say 4 writers.. 4 producers.
Music has never devolved, it’s the same that it’s always been. Poppy stuff like this has always dominated the charts, this is just an era where more attention is given to production/writing/copyright.
Now back to work, kids.