Wearing a helmet makes falling more likely? Vaccination makes disease more likely? Fire drills increase the chance of fire? Information about bear awareness makes bear encounters more likely?
Of course not. Civil defence is a good thing, sticking your head in the sand is not. Also, the brochure is not just about war but also about other crises. Sweden can experience 'interesting' weather which can leave people out of reach of rescue services for a while so 'be prepared' is just good advice.