If you land with less fuel than the legal minimum you are going to have a lot of explaining to do, there will be an investigation and you, the pilot and the airline will get enough headache from it that you will make bloody sure it does not happen again. The pilot(s) may not be able to fly until that investigation has run its course, the airline may get fined or warned if this is the first time it happened. In an extreme case the pilots may lose their license.

> It seems absolutely fair to say that, in this situation, the people - the pilots in particular, but also cabin crews, ATCs, engineers, and their unions, are the backstop worth observing and celebrating.

I will hold off on that conclusion until the report is in. There are so many possible root causes here that speculation is completely useless, and celebrations would be premature.