Along these lines, I wish people would be extremely specific about what their eyes actually saw versus what they inferred. As you say, what Fraver saw seems to have been a reflective object that seemed to be close to the water’s surface, which vanished, and then later possibly another reflective object some distance away. If I wanted to do a magic trick along these lines, I would have two silver balloons a distance apart, pop one and then draw attention to the other. This would make it seem like the first had flown impossibly fast. I’m not saying this is what happened, but this sort of thing has to be considered when the only other explanation being offered is completely outlandish.