A very good point, Matt, and well made. Having studied music business management back in the '80s, I couldn't agree with you more. However, I would take the high road or the low road and not the road in between. As to which I will take when I get there, I don't know. Perhaps something along the lines of putting an asterisk next to each artist name for the 'PG session musicians' who are on that track and listing them.
Then adding a proviso at the bottom of the playlist to the effect that: 'performances courtesy of PG Music'?
Nothing illegal or dishonest in that, eh?