Ryushikaze is actually using a valid application of the scientific method to evaluate this game:

1) If someone makes an unusual claim, the burden of proof is on the person making the claim. It's not of the job of the people hearing the claim to disprove it.

2) Many explainations for events are possible, but simpler explanations are more likely. That's known as Occam's Razor.

3) Valid evidence would include events from the game itself, an official book (like Ultimania), or creator interviews.

Speculating on ideas that are based on other sources can be fun, but are ultimately unproveable. However, some ideas are more likely than others.