I'm not sure about the case at hand here, but one reason for hearing about these events more often than once every 200 years might be because they are uncorrelated.
E.g. a "once in 200 years drought" in California might happen at the same time as a "once in 200 years over-mortality event" in Indiana.
News would tend to report on these, so we see many of these even though they are rare.
E.g. a "once in 200 years drought" in California might happen at the same time as a "once in 200 years over-mortality event" in Indiana.
News would tend to report on these, so we see many of these even though they are rare.