Did it shake by a blast? Or was it just hastily turned around, to catch the flames?

I've watched many videos about that in the past, even ones where there were overlays with 3d-point-clouds.

Not in the mood to analyze this one further. Have doubts about it being really 'real time', conversion errors, whatver.

Maybe our understanding of 'explosion' is different. By explosion I mean something coming apart fast in an instant, with a bang, things flying away, shockwave.

That wasn't that, more like a https://en.wikipedia.org/wiki/Deflagration

Caused by whatever. Very likely propagated by the flammable paint on the hull. Like a flash fire.

Which was my initial point.

For sure, in my mind a deflagration is a type of explosion, but I certainly don't mean to quibble about terms or to litigate this video more than is interesting to you.

I guess for me, I don't know whether it was hydrogen leaking around the rear or thermite in the paint which caused the ignition, and I don't know whether a helium airship would've also caught fire and how disastrous such a fire would've been. But I do know that what happened next was that the hydrogen ignited and the ship blew up.

That being said I think airships are a criminally under explored mode of transit, and that the Hindenburg shouldn't be a reason to abandon it altogether. At a minimum we're much more experienced in handling hydrogen now, and modern hydrogen blimps don't seem to blow up all that often.