Considering its effects in Asia and most of tickets sales coming from USA
Probably because the series smashed in the 80s. The film industry at that time in Asia aside from the more advanced countries like Japan, Hongkong... was still small.
Star Wars is FAR more iconic. It doesn't mean HP was bigger over the past 10 years since the PT of SW ended that it's more iconic. HP is amazing and it is iconic but SW is the biggest Saga of all time.
Harry Potter is the Star Wars of our generation. They're p equal, but the hype over Episode VII is beating the hype over Fantastic Beasts (though maybe not the Cursed Child play). FB comes out in a year, though.
It's curious, I never got the hype over Star Wars. I like the movies, but the universe seems kind of bland compared to the wizarding world.