I was about to post the exact same thing. It'd feel like a serious waste of potential to do a film about the reactor when the earthquake and tsunami that caused it was unbelievably more destructive. If you just focused on the reactor, it would be a lot less scary and a lot less terrifying. I mean, I was in Tokyo during the earthquake (on the 11th floor of an office building in the skyscraper district of Shinjuku), which was 400 kilometers southwest of the epicenter of the earthquake and I still have minor PTSD to this day, so just imagine the people whose houses collapsed in rubble or whose family and friends were swept out to sea to never be seen again. Compared to that, the people evacuated to other parts of Japan such as Sendai (the evacuation and displacement of people from their homes is arguably the worst part of the Fukushima disaster), the regular workers who helped clean up the plant who are still expected to live out their entire lives, or the people in Tokyo such as myself who had to go through planned blackouts and brownouts and had no access to products like milk (though that has nothing to do with the reactor and more to do with the highways being destroyed by the earthquake) would be pretty dull and underwhelming in comparison to the massive devastation of the earthquake and tsunami itself.1 person has died because of the meltdown there. About 16000 people died due to the earthquake and subsequent tsunami that caused the Fukushima power plant to fail. I think the focus would be badly misplaced if they made a show about Fukushima.
Plus, with Chernobyl, the 2,600 square kilometer exclusion zone is still in effect 34 years after the incident. With Fukushima, only 8 years after the incident, there is almost no exclusion zone at all. The radiation levels in the city of Fukushima were measured in 2019 at levels lower than those in Seoul, South Korea. But even though, unlike Chernobyl, people are allowed to move back into their homes in the exclusion zone, virtually no one has. A city that used to have a population of 21,000 people now only has 2,000 because people just didn't want to risk it (and I can't blame them). Out of interest, I looked on Google Maps, and a convenience store a couple minute walk from the Daiichi plant is open right now and closes at 7pm (which it normally is open 24 hours in most parts of the country). So even though Chernobyl and Fukushima are the only 2 disasters to be rated a 7 (the maximum rating) on the International Nuclear Event Scale, they really aren't remotely comparable.