They only didn’t count people falling from the roof as cost of solar energy. For a country of 40m inhabitants, it’s about 1 per year, and that’s huge:

> Solar: In an average year nobody would die – only every 50 years would someone die.

It’s like saying Chernobyl only caused 32 deaths because the other ones were outside the plant.

Fortunately, a rational PV rollout will use PV on the ground in large arrays, where it's much cheaper than awkwardly fitting it onto fiddly little roofs.