Why doesn't Wikipedia auto search?

When people link to articles that don't exist it shows up red on the page.

When you click that link it takes you to a page that informs you that the page you were trying to look at doesn't exist.

Why doesn't it include a search feature in it?

This page about "Confessions of a Gay Rapper" doesn't exist, but why don't you try searching these related articles... blah blah blah.


They really should do that. (And I don't mean the "Search existing articles" button. It should be automatically on that page.