I agree on the dissonance, that rankled me too. What does "as usable as any widely used app" mean, in the context of a hobbyist OS for hackers who have already committed to learning a weird new functional programming language?

I interpreted that whole bit to mean "We tried to make a commandline-free UI frontend for it and failed." But I am glad they're trying to make it more usable! Last time I installed it, using the commandline from the web interface was really clunky, you pretty much had to be at a shell.