Ha. That was more a play off the fact that most times "busy" is just relative.

I wasn't THAT busy, maybe I just had things to do that I wanted to get done more than go on a hike.

I feel it's kind of a moot point. GP's intention or train of thought doesn't change the downstream effects. Busy or not, they didn't go, and that's the bool the universe went with.

As others have already stated though it's really not GP's fault and they're not responsible for managing other's decisions. Could they have saved a person? Maybe. Or maybe the late father would have died a week later anyways.