Server wide hacker kill... why is this even an issue?

Wouldn't it be fairly simple to add a function that checks if "More than 'x'% of the server has died within 'y' time"?

There is no situation in legitimate DayZ where 30 people will die at the same time. It seems an automatic system to deal with it wouldn't be too hard to implement.

Is there a reason this isn't done, or am I missing something?