Looking at her video list, she released 20 videos between the bed video and this hanger video. This one -> https://www.youtube.com/watch?v=XYqz1F6eAVU <- came out about 2 weeks after the bed video. So, she very much kept her promise. Just sayin.
That might be because she's Swedish. As a Scandinavian it's always a bit weird seeing Americans staining wood, it's not really something you'd do, unless you're trying to make it lighter. Americans, and the British, loves staining wood, making it darker. That's kinda the opposite of what you do in Scandinavia. You keep everything light, bright and natural (if possible, pine has a tendency to yellow and that not really fashionable).
It's not because they love staining wood, it's because the predominant species of trees in those areas are those that take better to staining.
In Scandinavia you'll get a lot of it pine, which is one of the types of wood which typically doesn't need staining, especially for indoor applications.
There are light stains that can make the wood grain pop. But you are correct, to my American eye, that unfinished look really detracts from the full effort.
In the Kickstarter video the wood is painted (and she has sensibly removed the goofy leaves on the sides, which were obviously only going to get in the way).