No, he's right. Sprawl is inherently a negative term. Japan has large cities because you know, they can't put people in Manchuria (they've tried) or on the Moon, so they have to put them somewhere. So the most efficient way to house large numbers of people is in dense cities.
The US is a great example of both urban sprawl (outside downtown, American cities have town to village population densities) and suburban sprawl. The worst of both worlds, really.