I thought that originally , but I assumed that because both sides just show as VR-1000 the 'Plug Side' wording is there to indicate the A-side , along with the general industry standard of promos being white labelled copies.
But I'm certainly not going to argue the toss with the 'horses mouth' , even if the producer is noted on the label as Tommy Moers and Kaplan's only credited as co-writer of the flip , maybe someone's confusing producing with publishing which was done by Sammy's 'Lovelane Music'... ?