Deeefinitely relevant. We teach a full stack course (as many other bootcamps both on and offline) but sometimes the goals of students aren't that broad to begin with. They start with a small chunk, and then pick up projects that perpetuate their learning as they go. I can totally get behind that!
There are also simply those who want to pick up these skills and apply them in their job -- one of the Thinkful students I mentored was a GIS data analyst who just wanted to be able to write scripts around the data he was working with.