Gotcha. Well, it does appear like some official maps look exactly the same as some done by, say, Glorfindel23, such as Cair Andros. But isn't he one of your map designers, too...? I'm still very new to all this, so forgive me if I'm getting some things mixed up!
Anyways, if it counts towards getting any custom maps in, I would just like to say that I think many of the maps by Glorfindel23 and H4albarad would be great candidates for inclusion into the official list of maps. Maps like the 7-level Minas Tirith, the Rohan Open World map, the Minas Twins, Rise of Angmar, and many others. These maps I just posted in particular are some of the most unique and interesting maps, offering some of the most unique gameplay possibilities I've ever seen in a BFME game, and are some of the most creative and imaginative. It would be great to have some official support for these to take care of bugs and keep them up to date with new versions of Edain.