That's not consistent with the depiction of quantum slipstream drive onscreen; as shown, it requires very precise calculation to keep the vortex stable, so the longer the journey, the more difficult it is. Besides, we already have stories where the Enterprise plays hopscotch across the quadrant -- see Doors into Chaos, for instance. Or First Contact, where the E-E seemingly got from the Romulan border to Earth within a few minutes. It's been a long, long time since anyone's really bothered to obey the injunction of the original TOS and TNG writers' bibles: "Don't treat deep space like a local neighborhood." The UFP and its neighbors are already hours or days apart, at least when the story demands it. At least QSD would be a better rationalization for what's already effectively the case.