Actually, the question is going to be whether VR kills more people, or saves more people, or has no statistical effect. People die at fairly predictable rates, so if you have a given number of people you can assume that a certain number of them will drop dead if you let them sit around long enough. But wait, the kind of people who go to any particular event will skew the results considerably; the death rate at Burning Man is below the national average in spite of it being more dangerous conditions than average, probably due to the particular nature of the people who go. If you're ill and/or infirm, you're less likely to go in the first place.
If VR kills anyone it's going to be because their display crashed or freaked and they walked off a roof or into traffic. Don't play VR games on the roof or near a road unless there's a good fence, railing, etc., problem solved.