I mean, sure, but this isn't "sci-fi" in the sense of a fusion ion engine or something. I don't think there are really any big engineering unknowns here, and building a rotating space station is certainly less technically complex than sending humans to Mars, and maybe even less than going back to the moon. We already know a lot about space stations from the ISS; it's just very expensive to build all the bits of a rotating station and to lift them into orbit.

Per the Russians anyway, the stability of the station isn’t what we expect. It would NOT work the way it naively seems like it would.