I still have some german documentary about a man defusing these things burned into my head. He was asked why he wasn't wearing any safety equipment while working on these large bombs.

Well for smaller amounts of explosive chemicals, they'd wear the blast suit, because it could save them and might keep them a bit presentable otherwise. That'd be nice for the family. If the bomb is several times heavier than you are though, they'd just do the job right and go home after - and no one needs safety equipment on a job done right.

The way they figured out how to defuse the bombs was pretty rough, too. The person that did the defusal would call out what they were about to do next to a person taking notes at a safe distance. If the bomb exploded, they knew not to do that again.

More specifically such large bombs will kill you with the pressure wave if nothing else. They are not survivable. Either you diffuse them successfully or you die.

It would be interesting to see a graph over time, because presumably the vast majority of those happened in the immediate years following the war. That Wikipedia link mentions two deaths in 2014, which may be the most recent fatalities.

I can recommend a lovely short video in French documenting the work that I recently watched: Meet the team still cleaning up after World War I | Zone Rouge (https://www.youtube.com/watch?v=mB-Ncob1gDk)