>>57989984 (OP)It's definitely not canon to the series currently, as they refuse to mention it in any capacity, whether it be met locations or ribbons. For met locations, there have not been any refactors for any of those but they really need to refactor a small amount of them if possible (ex: making Pokemon specifically from the Sevii Islands show a met location there assuming the location IDs are still saved for routes, removing 'distant land' and replace it with Orre, figure out what to do with 'Lovely Place' IDs like if an ID is Hayley and Lovely Place is the met location, turn the met location to "A Pokemon Ranch" instead, etc.). While I'm on this rant, I would also wish for ORAS specifically to have a different origin mark as these are the only two games in the series that take place in a different region and didn't get an origin mark since I guess the idea was to have origin marks originally show gens, this would just be for all Kalos origin marked Pokemon with a met location from Hoenn, that's a different origin mark.
For ribbons, they've changed descriptions, IDs and titles multiple times and since the Earth Ribbon and National Ribbons are legacy ribbons from gen 3 that got promoted since there needed to be some unique ribbons used I see no reason why in the descriptions that you cannot explicitly name drop 'Mt. Battle' for the Earth ribbon or tacking on 'in Orre' at the end of the Nation Ribbon description. Either that or refactor the ribbons again into different ribbons entirely (Earth Ribbon -> Mt. Battle Winner Ribbon and National Ribbon -> Pure Ribbon) or, if they don't want to have them at all, shove them into the Battle Memory Ribbon tallies like they did with the gen 3/4 Battle/Contest Ribbons.
Orre should be canon and I feel like it isn't because GF is jealous that the devs of Colosseum came up with such a cool idea first.