There are other considerations than immediate direct deaths.
From Wikipedia:
> though there have been no fatalities linked to radiation due to the accident, the eventual number of cancer deaths, according to the linear no-threshold theory of radiation safety, that will be caused by the accident is expected to be around 130–640 people in the years and decades ahead...in the most contaminated areas faced a 70% higher relative risk of developing thyroid cancer for females exposed as infants...
> However, an estimated 1,600 deaths are believed to have occurred due to the resultant evacuation conditions...
> Summarizing all responses to questions related to evacuees' current family status, one-third of all surveyed families live apart from their children, while 50.1% live away from other family members (including elderly parents) with whom they lived before the disaster. The survey also showed that 34.7% of the evacuees have suffered salary cuts of 50% or more since the outbreak of the nuclear disaster. A total of 36.8% reported a lack of sleep, while 17.9% reported smoking or drinking more than before they evacuated.
> We know from Chernobyl that the psychological consequences are enormous. Life expectancy of the evacuees dropped from 65 to 58 years – not because of cancer, but because of depression, alcoholism, and suicide. Relocation is not easy, the stress is very big.
> A frozen soil barrier has been constructed in an attempt to prevent further contamination of seeping groundwater, but in July 2016 TEPCO revealed that the ice wall had failed to stop groundwater from flowing in and mixing with highly radioactive water inside the wrecked reactor buildings, adding that they are "technically incapable of blocking off groundwater with the frozen wall"...every day 300 tons of contaminated water leak from the crippled nuclear plant...
> On 22 August 2011, a government spokesman mentioned the possibility that some areas around the plant "could stay for some decades a forbidden zone".
> The amount of compensation to be paid by TEPCO is expected to reach 7 trillion yen. Costs to Japanese taxpayers are likely to exceed 12 trillion yen ($100 billion). In December 2016 the government estimated decontamination, compensation, decommissioning, and radioactive waste storage costs at 21.5 trillion yen ($187 billion), nearly double the 2013 estimate.
> In 2014 Japan enacted the State Secrecy Law. The Fukushima incident falls under this law and, as a "state secret", independent investigations and reports are forbidden by law.
https://en.wikipedia.org/wiki/Fukushima_Daiichi_nuclear_disa...