I see your point, but we did have the automated functionality on Wikitravel. Not sure how it's coded, but it works well:

In T45313#2478598, @Legoktm wrote:

Should (state) be included or stripped?

In T116262#1750728, @Jdlrobson wrote:

Are you saying you don't think banners should be allowed for project pages? If so I'll close it.

I'm not convinced this is necessary. The use case on Wikivoyage is exclusively for the project-space page about the banners themselves. That kind of one-off exception seems like a poor basis for a change to the module itself.

This may be the bug that pushes me to actually get into MediaWiki development. How hard can it be?

Oh, furthermore, the current pagename doesn't need to be displayed in the breadcrumb trail, since it appears immediately adjacent within the header.

Actually, there's no need to keep a stack of previous placenames. All disambiguators should be redundant within the context of a breadcrumb trail; they can just all be ignored.

It just seems like something useful, following the precedent of printed books. But perhaps our articles are better analogized as chapters rather than as entire books, obviating the need for TOCs unless printing several articles.

I'm fine with the banners not printing, as they're largely decorative and would be a waste of paper, we do need to at least print the article title and some sort of table of contents.

In T77925#848657, @Jdlrobson wrote:

@Matroc It seems that the Wikidata property is misleading then, I had imagined all projects would be sharing the same value. It might be better to have a property per project.

In T77925#844652, @Jdlrobson wrote:

@Matroc why is the Wikidata value India banner Elephants.jpg ? Is that just an old value? Which is the true one? Surely Wikidata should only have one Wikivoyage property?

In T77925#842120, @Jdlrobson wrote:

The app already is doing this and mobile web is exploring how it would work there.

In T77925#832316, @Jdlrobson wrote:

Is there any reason why you would not want to use the banner value stored in Wikidata? It seems strange the value might not be the one actually used?

Well I've been looking for a way to exercise my developer's chops by getting into MW coding, maybe this would be a good entry point.