The country page has one job
BelgianPremier sits above destination products. Its job is to make the first useful cut: whether the reader needs arrival context, a rail city, a river gateway, a nature base, or a wider El Premier reference.
That is different from a general Belgium guide. A general guide can list places. A routing hub has to show which place should own the next planning question and which place should stay out of the way.
The first split is rhythm
A Brussels-centered trip behaves differently from a Flanders rail break. Dinant behaves differently from the Ardennes, even when the two are geographically close. Leuven and Mechelen can both be easy, but they serve different reader appetites.
The hub should name those rhythms before it talks about attractions. If the rhythm is wrong, the best list of sights still sends the reader toward a weak route.
Routing is reader service
A strong Belgium hub does not try to keep every reader on the hub. It compares, qualifies, and hands off. When a destination product can answer the next question with more precision, BelgianPremier should make that handoff visible.
That keeps the country layer useful without flattening the product graph. Ardennes, Dinant, Leuven, and Mechelen each need a defined job before they deserve more page depth.