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All but one engine successfully relit (the outer engine ring has no re-light capability) but they started to fail quickly afterwards.

Scott Manley also has the theory that the maneuver caused a sloshing motion of the fuel and the water hammer ruptured piping on the engines, causing a cascading failure.

https://www.youtube.com/shorts/7LYw6gU65ac

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I love how at the end of the video the SpaceX announcer refers to what just happened as a "rapid unscheduled disassembly of the booster".

That's an industry term. Lithobraking is too.

Oh, I know. I used to work at NASA. But I still think it's a delightful euphemism. (And yes, I'm being ironic.)

Is it a humoristic (sarcastic) style form, or just a very neutral, matter of fact, professional assessment? I can't tell, in part, I guess, due to esl.

It's not clear either way. But as a neutral, matter-of-fact, professional assessment it sounds really weird because "disassembly" generally implies an orderly process, and this was not that.

The process is orderly. They tested and designed the explosion very specifically.

That's not what I meant. Disassembly generally implies a resulting state that makes reassembly possible. This was not that.

It's in a similar category to FUBAR.

RUDimentary jargon

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