In one case, it was under warranty but heavily disputed and it took a lot of posturing to get the work done.

In the other case, insurance took care of it, but flooring that would have been covered by insurance would not match the rest of the area, so the owners decided to renovate a lot more than they wanted to.

To me, the pain of having to live through the repairs/renovations is enough to make me vigilant of water leak issues.