That's really sad news, and follows a run of unfortunate events at Journey to Churchill, which should never have been allowed to happen given suitable research and design planning before the facility was built. I could forgive one incident, but three is totally unacceptable.
And obviously gives even more fodder to the antis.
Hopefully a new year will bring more good news along the lines of Journey to Churchill and not sad news like the accidental deaths in the past few months.