eric_
The main name of this road section (southbound side) is Picardy Place. Baxter's Place is the second name. That's why I tagged this road section using name=Picardy Place and name:left=Baxter's Place, such as defined in the List of the CEC public roads: Picardy Place is "From BROUGHTON STREET centre‐line to LEITH WALK.". 
But you're right, I should have tagged the northbound side as Picardy Place and used Antigua Street as second name (name:left). I just changed it. Thanks a lot to have spotted this one.