SSB is only the initial game that Amiibo are going to be accessible on and as such, no reason to include the name. I cant imagine anyone is going to look for them by typing in "Super smash bros Wii U Amiibo Mario" and instead just searching "Amiibo Mario".
When it comes to the Skylanders, I tried to include the game they are released with (Spyro, Giants, Swap force, Trap team) but the main focus of all of the interactive figures is the figure themselves.
I honestly dont see the need to have the separate regions either. Once the figures are opened, there is absolutely no difference in which region they come from. All we need is the Interactive figure category and, if for some reason you must categorize which region you bought it in, just add it in notes.