The event definitely needs a higher trigger condition. As I see it, the event is basically there to keep the game interesting once you've basically already won. However, it triggers so early that it's often just another annoying pop-up; I had it trigger something like 5 times in the first 200 turns in one game. The event probably shouldn't trigger until you reach a minimum score, something like 750 or 1000 perhaps.
At the very least, it shouldn't trigger in the first 100/200 turns.