That's almost certainly just an artifact of old data, and I typed that before realizing your URL has the year 2011 in it.
replyA lot more utility solar has been installed since then. And continual improvements in efficiency spread the mining related deaths over a great many more TWh.
Our World in Data covers this and every time they update the stats, solar gains on nuclear. It's currently in the lead but they haven't updated for 6 years:
>A lot more utility solar has been installed since then.
replyYes, utility solar is very safe. Unfortunately rooftop solar is much more dangerous and also much, much more costly. So one has to wonder why anyone supports the massive subsidies that are still given to rooftop solar.