Over 15K people were killed in the quake and tsunami. On the scale of "badness", ~200 projected cases is not a scale tipper. Not to trivialize the additional projected cancer risks, just to put it in perspective.
The plant did not fail because "nuclear was bad", it failed because it wasn't designed to be hit by a tsunami of that magnitude; which if the same reason for many of the direct tsunami-related deaths. With that in mind, Japan needs to get better at tsunami planning and engineering, like they generally have with direct earthquake planning and engineering.
Now, as to comparing energy producing industries, the mortality metric would be deaths per kilowatt hour; in which nuclear fares extremely well compared to mainstays like coal, even if 200 additional cancer deaths out of a "normal" 4400 for the given population are added in.
What other industries would it be relevant to benchmark like this?
Why is it a poor way of weighing up the hazards?