RUD is an "industry term" :) https://space.stackexchange.com/questions/10022/who-coined-t...

I did not know! Thank you.

RUD is more of a joke term than doublespeak. Like FUBAR and SNAFU.

Was it an unscheduled disassembly?

From the video it looks like the stages failed to separate and the rocket started tumbling. I'd expect the range safety officer to trigger the self-destruct at that point which would make the explosion newly scheduled rather than unscheduled.

Not double speak. Just terms you are not familiar with.

The type you do to examine wear after a successful landing.

There'd probably be more wrenches and less fire involved for one thing. In the near-term it would also likely be done on the ground.

Hard ocean landing was the scheduled disassembly