Maybe you are correct.No I think they were added when they were meant to be sold in spain. But then maybe some stock didn't sell so some may have ended up being exported and selling in another country.
I have found some of this commercial catalogs in danish childhood lots, but they could have been bought on vacations to spain
I have found PBP, kenner, palitoy and parker star wars commercial catalogs and posters in danish childhood lots. If I remember correct I also once found an AT-ST made in spain with this PBP commercial catalog in a danish childhood lot
But I guess it is hard to find proof about what the factories did unless we get in contact with people from the factories