That's fair. I put those records together because of their bass dominence and the similar non-trad non-rock use of the electric guitar and that the bass players and drummers had some facility for incorporating funk into the band's own idiom.
I tend to listen to records from the bottom up and I only really notice lyrics if they are either brilliant or, terrible and delivered with either great or negligible aplomb. So the similarities I hear are deffo from a bass player's perspective.