Further info at Community Forum: https://community.openstreetmap.org/t/canada-transit-route-naming/136494 and https://community.openstreetmap.org/t/removal-of-from-to-tags-in-routes-if-the-name-already-contains-the-values/138323. 

FYI, there are already efforts to discourage the naming format that was specified there, and there's also a Canada-wide effort to replace or remove such names. Also, there are notes specifying the recommended naming format there as controversial, and it has been edited to discourage its further use.