These events are designed for this mod for all majors, cause mod tries to simulate real life troubles. Events should stop when you are at war and they should activate on regular basis when you are in peace (as far as I know).
Vanilla game allows you infinite gathering of resources which kills part of real life strategic challenge - how to survive war with limited resources. Can you imagine that all those belligerent countries knew in advance how much oil or rubber (rare materials) or steel or supply they will need to supply war? No, they didn't know exactly how long will war last, where will be all fronts, which countries will join to "our" side or to "enemy" side etc. And all of them except maybe US and USSR had specific troubles to get their resources. Vanilla "forgot" this, WiF repaired this.