> The only concern is that Wikidata is a single wiki and
> not all users on a
given wiki will be concerned (except for adding
> interwiki links but
technically ll is done on this subject).
> The rest is about data that
will be used by tricky templates
> and whose readers would be more
technical users than usual.
It's a single wiki used by a lot of other wikis. Quite like Commons, and news about tech updates on Commons do make it to Tech News.
Wikidata is severely underused by templates, even though templates are supposed to be Wikidata's biggest killer application, so more PR about it really won't hurt. Examples of successful use of Wikidata in templates in some projects, even without tricky technical details, can go a long way to furthering Wikidata adoption.