The interesting thing with this type of bug is that they did not necessarily need to get more load than they can handle over a medium lenght time period (like 1

The interesting thing with this type of bug is that they did not necessarily need to get more load than they can handle over a medium lenght time period (like 1 second). If they get more than they can handle, even over a short period of time, their throughput goes down significantly as the system tries to compensate, meaning that a normal load which they are perfectly capable of handling becomes one they cannot handle.