It's unclear how chill they were at the time. You seemed to read something as very chill. It's a lot easier to be chill once the financial impact is blunted by insurance, restitution and tools. And it also helps that time has passed, so now it's a funny story.
OP's wife praised them for taking care of the issue with a level head. That's very different from being chill. Not anti-chill, but a different dimension. In fact, it's probably a better trait!
It's possible you are using the word "chill" in a way that is unrecognizable to me. And, from context, how other people responding to you interpreted your usage. I don't think so, but then again I may have have no idea what you meant.
Anyway, if you want to explain what you meant, great.