I really adore these various fun, slice-of-life-type stories. While, of course, these all diverge quite a bit from the actual story, that's really the point of this series - just to have some lighthearted, fun scenarios without all of the tragedy of the main series. Who doesn't enjoy a little bit of fluff every now and then?
I gotta say, it's fun to see all of the various characters bickering and causing all sorts of chaos then seeing Saber just vibing in the background and watching it all happen.