This is wonderful. To be helpful, I searched for the official listing of the 11 criteria a route must comply with to be formally designated a pilgrimage route.
Here they are: (editorial comments are below each line in parentheses)
The 11 Criteria for Formal Designation as a Camino Route in Italy
1. Linear and usable physical paths
2. Horizontal and / or vertical signage for each stage
(well marked)
3. Safely path
(safe, easy to walk path - unknown if this means just graded, gravel, sand, or paving)
4. Asphalt roads not exceeding 40%
5. Stages with all walker support services
(presence of cafes, hostals, hostels, albergues, etc.? - see #7)
6. Online description on reference site of each stage
7. Housing and catering services within 5 km of the Path
(sorry, but I do not go 5 Km off route for lodging...nice try though)
8. Presence of a 'governance organ' of the Way
(someone will be in charge)
9. Ensure supervision and maintenance of the route
(no ditch pugs required ?)
10. Geo-referencing of the route
(GPS plot available ?)
11. Reference site constantly updated
Would that this actually worked the way it is listed. There is also a list of the other routes that applied but did not qualify, as they failed to meet all 11 criteria. Those routes are listed as well.
Source:
http://www.turismo.beniculturali.it/en/home-cammini-ditalia/atlas-of-paths/
I hope this helps.