Not about filming it's about having the story not restricted to one continent, especially involving Aliens.
Man of Steel and Avengers had Aliens attacking only one country, Abin Sur crashed in the US and his ring only had to fly a few miles to Hal Jordan, it wouldn't added more chosen one aspect if he crashed somepalace else and the ring chose Hal after flying thousands of miles to find him.
This trope was even parodied in Monster vs Aliens...
There was a cool scene of Zod adressing the world in MOS though but the area that the Gravity thing was in (that wasn't Metropolis) was a desolate barren place, no effort was done to show the people on that side of the world.
Of all Marvel movies only #10 out of #28 feature other countries. Most of which are short scenes, prologues or epilogues like Blade in Russia, Magneto in Argentina or Cap out of his jurisdiction in Germany to get Loki.
So why not have whoever crash lands crash someplace other than where they always crash?
I'm not arguing, just stating that more representation of other countries would be welcome.