It drives me crazy that weapons disappear when you holster them. It doesn't feel right to run around a dangerous wasteland without a single weapon visible on you body. Could just as well have left out clothes and armor too then, and have us run around in underpants. Makes just as much sense. Can't understand how you came to the conclusion that this was not equally important?!
What I would truly love to see though (and what I expected), is a feature that show all the weapons you have favorited holstered on your body. One of each type that is, meaning if you have favorited two or more rifles, it would only show the last one used, and same for guns and so on. It was a mod like this for Skyrim I think, brilliant in its simplicity, and it was awesome! I was almost certain Bethesda would take notice. Now I worry that when Bethesda hasn't even provided the holstered weapons' positions or animations for drawing/holster weapons, it will be a long time before we see anything like it for this game. Makes me sad.