Bad news travel faster than good news, only human, the good stuff can not kill you so everyone does focus on the bad stuff to be prepared.

But consider this, if you travel to Japan and think its all pink ponys and butterflies you will not have much fun.

If you travel with an mindset of an explorer entering the jungle and do not touch any pretty flowers before the natives tell you it is safe you will only have pleasant surprises!

The main point as i see it is that Japanese culture is about the we, western culture about the I, booth have there good and bad sides, you are just used to life and compensate the bad sides of our I culture, they are a given for you, while the negative sides of the WE culture do stick out to you, they are foreign, as much as the positive sides.