I hope this set only features music by McCarthy and Chattaway. David Bell always reused his own material and If you look up the term sonic wallpaper in the dictionary you'll find a picture of Paul Baillargeon.
Well, I could defend Bell and Baillargeon, but that's a matter of opinion.
You could defend them, but what woud be the point?
Bell and Baillargeon were Berman era composers, perfectly suited for Berman's idea of sonic wallpaper music.