text: me again.  see the link in https://wiki.openstreetmap.org/wiki/Rendering_of_road_surface_in_standard_OSM_style to the area of samples, further east being nodes that mostly require zooming in from the default z=15, but it appears that admin boundaries are lacking, at least in the rendered areas i zoomed into.
  
  and of course this not reflect osm-carto rules themselves.
  
  ...
  
  which there appears to be a commit today that will further degrade our work:
  
     jeisenbe and imagico Render administrative boundary text labels for
     relations only (#3762) (BUTTON) …
  * Render text labels along borders of admin boundary relations only
  
  Currently lines are only rendered for borders mapped as relations (i.e. osm_id <
  0) but the text labels along the borders are rendered for relations and closed w
  ays. This commit adds a filter for "AND osm_id < 0" to the admin-text layer, so
  that the text labels do not appear in the rare occasions when an administrative
  boundary is mapped as a closed way instead of a relation
  
  * Render central name labels for country and province/state relations only
  
     Latest commit 96c64fa Jun 11, 2019
  
  
  see https://github.com/gravitystorm/openstreetmap-carto/pull/3762 and probably the linked issues.
  
  grrr.