It's usually a good thing that Page Info lists "No citations" under "Possible issues" – but not in the case of disambiguation pages, which are explicitly not supposed to have citations. Could the Page Curation toolbar be modified to prevent this notice from appearing on any page containing a disambiguation tag (of which there are several, including aliases)?
Topic on Talk:Page Curation
The disambiguation templates were actually standardised with Extension:Disambiguator.
Filed as phab:T76198 (but will need a volunteer, as nobody is currently officially assigned to work on that extension)