#Notable people like any people die. The more notable they are, the more articles there are about them on the many Wikipedias.
Many issues resolve themselves when a person dies and consequently, death is a moment where Wikipedia articles are revisited.
When a recent death is registered on Wikidata, it makes sense to inform all the Wikipedias that have an article. The first thing that is needed is for Wikidata to be able to show these most recent deaths.