The article mentions a 1965 tour that the Lovin' Spoonful did with the Supremes. I saw a local PBS show a few years ago where John Sebastian spoke about that tour and how he and Zal were outside the bus one day and talked about doing something that was rhythmically like some of the Supremes' material. That's how Sebastian ended up writing "Daydream". I imagine that "Daydream" came out of "Where Did Our Love Go?".
I used to have the CD version. Ended up just keeping the LP because I felt it was already close to perfection without the extra music. But that's just me.
I had a copy of the Limelight reissue - vinyl was fairly beat up, packaging wasn't - and replaced it with the CD version. Probably should have kept the Limelight, but live some, (and hope to) learn some.