Possible issue with Interface folder

Hi,

I recently had a problem and I was about to re-download some files from the Warmane download section. I selected Wrath of the Lich King > Windows > Download and my Torrent booted up via the magnet link. When I went to uncheck those files that I didn't need I saw this:

https://imgur.com/a/K356ien

I'm quite sure the Interface folder is supposed to be there as well, right? It's nowhere to be found in that tree.

EDIT: I found out that apparently the Interface folder is created after the game is launched. If that's correct, I clearly didn't remember it.