Hindenburg is brought up in every single article about airships, so reminding people to remember is rather redundant. It happened 80 years ago. 30 people died. There might even have been one or two people looking into the causes over the last century in the hope of improving things. It was a PR disaster more than anything. When 1500+ people died on the Titanic, it lacked movie reels of explosions and thus we still sail the seas. And now we have TV news, where nothing of note happens unless there is a camera to catch the carnage.