The giveaway that it is a parody is that it claims that Shintoism is derived from Buddhism. The Japanese were practicing Shinto long before they ever heard of Buddhism.
I found the gieaway in the third paragraph:
It is fundamentally a religion of peace.
Note the category: Political Humor...
Also note that tomorrow is the sixty-fifth anniversary of the attack...
Obviously the author was using the occasion to mock the "Loose Change" morons.