It is, yes. [ She gets it, truly. And with that, he's also given her some sort of confirmation that yes, what had happened back there with the water had something to do with his death. ]

But it's also a completely natural reaction. Every single person has a trigger-- with a bad memory, your body tends to remember certain things, and how it felt at the time, and so you'll unfortunately have that same unpleasant reaction if you experience that trigger again.