The main reasons Baker isn't very busy is because:
a) it offers less amenities than the alternatives (Yermo and Barstow)
b) Yermo was recently opened
c) Barstow was recently expanded
That being said, when those locations reach capacity, people will be thrilled to have Baker as a backup fail safe plan for overflow.
Also, unlike Kettleman which has a hip lounge and coffee shop with baristas waiting on you, Baker has a crappy mini mart and a Dairy Queen. It is possible that they could build a Tesla lounge at Baker if they like what they see from the pilot program in Kettleman and/or if it gets busy enough to justify it. There's no shortage of available land in Baker