Mecha in the character pages

So I see that the mecha of Gurren Lagann have their own page in Tengen Toppa Gurren Lagann...So I'm wondering why aren't any of the Mecha shows have the Mechs in their character pages.

Generally, mecha are associated with a single character per mecha. So the mecha related tropes go with the characters entry. Not sure why that wasn't done with Gurren Lagann actually. I actually can't think of a case where you would want to separate then. I can't think of any series where you have pilots switching mecha and the mecha themselves are interesting enough to warrant entries. Usually the mecha is basicly specific to a characher or they are generic enough not to matter individually.

Eva sort of separates them.

And then there is this