There were many women who were, for example, thrown into a body of water to test whether or not they were a witch. If they drowned, therefore proving they were not a witch, is there evidence that their accusors, or those who threw them into the water, were remorseful for this?
There’s certainly more to be said about accusers’ responses when accusations were disproved, but u/Kochevnik81 has a couple of answers here and here that you may be interested in, about how trials by water generally worked, when they were used, and what their purpose was. It seems that the idea that people who sank were regularly allowed to drown is a modern misconception — in practice they were apparently pulled out.