Similar to discussion about naming or numbering LRT routes - I don’t think anyone other than transit geeks cares about the corridor naming. Any regular commuter I have ever known had no trouble with “Take the Milton Line to Dixie”even if they didn’t know where Milton is. Occasional travellers and tourists get the idea quickly, especially if they have done the same in their home transit lives.
Plenty of other properties do likewise - the Surf Line, the Hudson Line, the Hiawatha Line, and even the Inland Empire. Let’s not overthink this.
I do think there ought to be electronic signage at each gate in the concourse showing the train that is boarding on that track - pretty common in other places - and that signage should list the stops for that train with a minimum of scrolling.
Be thankful that ML hasn’t done its usual consultant infused branded name generation - better the “Kitchener Line” than say the “Oktoberfest Corridor”.
