Wait, what are you trying to say with your last sentence? You're agreeing with me there/make no sense (Minor characters don't have a significant impact and some of them don't; that's essentially what you just said).
So you went into the anime, asked them their histories and relationships, and can put that info on the Wiki? That's what I'm talking about when I say "enough info to write anything about them". For example, we have a page for Amy (which I don't believe should exist), but we can't really add anything to her page besides what's already on there. We see their teacher twice (or more?), but we don't know anything about her except that she dislikes being called old (or young), is energetic, and can be a bit immature. Neither of them really caused any development for any of the characters, nor did their actions give insight into any other character's behaviour.
Ah. That would be important to put on the page, since not everyone (like myself) is familiar with the Godzilla storyline and premise, so it would be difficult to see the relation. (It wouldn't be a pun, either.)