Yes, it was assembled by them. The version of Vibes is the one we call the Rarities mix (cuz it was on the 1983 RARITIES LP) and originally on the BEST SUMMERS OF OUR LIVES radio bio. They spliced in the verses from another section that has been around forever. SMILE-philes have been making this edit forever, starting with the first SMILE boot in 83.
Hmm, if it was indeed assembled by them, and wasn't included in the "album" section, I kinda don't understand what the point for it to be on the box set was. I woulda preferred the longer instrumental mix of "Child Is Father Of The Man" or an assembly of "Heroes And Villains" like it described in the first post of this thread.