With wikidata interwikilinks it is possible to add enWP's Draft: namespace. Pages in that namespace are not considered articles and should not be available to be chosen. Where a page at enWP is moved from the main ns to the Draft: ns at Wikidata it should be treated with the same methodology as the link removal process.
I believe we can restrict links to specific namespaces in the config. I think that would be better than an abuse filter for performance reasons. Anyone up for creating a ticket?
It might be useful to replace the existing abuse filters for user pages, template subpages and files as well with limits via config if that's good for performance reasons.