There is no real reason that different continents and consoles need the same name, it would make it easier to talk about if you never had to qualify NA or PS4 or whatever.
So much unnecessary work on their end and on the players end.
How so? A name is a name... Personally, i don't care either way, but changing a name is no big deal. Also, if I can say Tempest instead of Azura Star PS4 NA... well, thats a lot easier on my end. Of course, I might have misunderstood what you were trying to convey.