Granted. Tokyo has been decimated, most of Japan and other countries in the vicinity are in a state of crisis, and groups such as the United Nations have struggled to send support to the region due to the danger involved. North Korea, in response to the high levels of radiation, have decided to send ICBMs across the planet, causing an international nuclear war due to the concept of Mutually Assured Destruction. Following Godzilla, other kaiju such as Mothra arrived as well. Humanity has been set back millenia, with society and culture as we know it having been fundamentally shifted. The world is in ruin, and all because of a post on SmashBoards.com. Was it worth it?
I wish Spirits had descriptions (akin to those of Trophies) in the Spirit Menu, allowing you to read them and learn a little about them.