Hello again. I do not think your goal can be reached with this particular usage of key:place. This kind of object has to represent an actual, tangible geographic feature that is the settlement, while administrative boundaries represent some abstract, political features that often cannot be pointed on aerial imagery.

The documentation does indeed provide guidance on the relationship between admin_level and place=* (https://wiki.openstreetmap.org/wiki/Key:place#Relationship_with_admin_level) : if and when a place is also a level of government with the exact same extension, then a relationship with admin_level is to be made. Otherwise, since administrative entities contain areas outside the settlement, that is not necessary nor recommended. This the case for Cookshire-Eaton, since it holds some four villages; this is the case for Témiscouata-sur-le-Lac, since it holds two villages; this is the case for many more merger municipalities, town and cities.

I stand my point; this batch of edits is controversial, to say the least , and should be the object of a consensus throughout the community, especially with the fellow québécois editors with whom I have cleaned up the canvec data with regards to the guidelines ― I'm thinking of PierZen, Martin868, jfd553, etc.