Oh it certainly isn't. It's a common flaw in most education systems that they highlight the good of their particular society and whitewash the bad. The negative lessons are often the most important and its a dangerous precedent, which is why it baffles me that Lorric seems so gun ho on this.
This isn't a Japanese centric issue, the US system does a wonderful job of glazing over the destruction of American Indians. I wouldn't surprise me if European nations don't spend a lot of time on all the skeletons in their closets either.
I intended to post something the like a few pages ago, i but was actually too lazy and i thought it might derail the thread. I think that's a major point, you'll find these tendencies just about everywhere, regardless of nationality. Accurate history education including a good deal of self-reflection concerning misdeeds of the own nation are surely important to avoid such one-sided perspectives, but i don't think this kind of thinking is based mainly on biased history lessons, i guess it roots much deeper (unfortunately).
I live in Germany, and for quite obvious reasons neglecting our own atrocities in history wouldn't be easy, and therefore this matter is thankfully discussed rigorously in our schools and the public. But i think similar tendencies are still quite prominent among some people here, hidden under a layer of public guilt we've grown up with, so i don't think it's mainly a problem of history education. Of course, we can't actually deny the atrocities in our nations (well, some do, but let's not talk about extremists), so we need to do it the other way around by
highlighting other nations' misdeeds. This behaviour is of course not only restricted to Germans, and i can only speak of my own experiences.
I had to think of this as MP-Ryan noted that many people feel of WW2 japanese as victims cause of the kind the war ended, through the use of the atomic bombings, and that the US and -as far as know- a major part of the US public never evaluated those bombings as actual war crimes; a perfect opportunity to point at others if it comes to sensible questions like guilt, and thereby distracting from 'own' misdeeds.
If it comes to matters like warcrimes, guilt, atrocities and the like -anything that touches the reputation or prestige of a nation- many people seem to feel the urge to 'defend' their nation, whether through denying own misdeeds or by referring (and thereby distracting from / or relativising the own acts) to the former enemies' misdeeds.
The main problem is nationalism itself i guess, the weird concept of 'national pride' and the feeling that nationality is somehow connected to personal prestigiousness. Japan is absolutely not alone with this.