This is interesting. Not familiar with Trager Bros. but I do buy coffee at WF. :)
In Old Town they carry a few verities from Ceremony, based in Annapolis, 32 miles away. (It’s excellent, BTW) in Pentagon City, they don’t carry Ceremony, but have many types of Commonwealth Joe coffee, based in Arlington. They also carry Mayorga, which is based somewhere in Maryland (Rockville, Silver Spring, or ??).
So I guess their excuse doesn’t really float, although their stock is “influenced” by locality.