It's notable if you've never written a C program before, and have no idea what even a minimum valid program would look like.
To someone who's never done it before, "building a working web application with 3 docker containers" -- no matter what that application does or doesn't do -- might sound much harder than it is to get started.
Comparing a ham sandwich to a roasted chicken isn't at all appropriate here -- it's more like comparing a ham sandwich to a gourmet bistro sandwich, where, to a beginner, a ham sandwich is a great starting point, because he learns about the very basics and can expand from there.
The value isn't in the end product here; it's in the first steps toward an end product and teaching people that it's not as befuddling as it might sound. It's not misleading and it's absolutely not meaningless.