PaladinNO: Have you checked your list of offline installers her on GoG? If you were elligible for the goodies, there should be separate downloads for all of them there.
If I had bought the game as physical Copy - there would be a pack of stickers, maps and other minor stuff. Nothing special but still. By ordering on GoG we are giving CDPR 25% extra income bypassing the cut for Steam for example.
So in total - we preordered, we payed teh maximal price, we payed directly and we got not even some minor goody. Digital wallpapers and stuff have been distributed to everyone.
So in an ideal world victims of preorder would get this DLC for free with personally signed letter of excuse - which is not going to happen, but assuming that CDPR wants to build up some goodwill again - I am somewhat expecting any gestures of penitance. I see zero reasons not to wait and buy this for 2.99€ few months later on key reseller.