It’s hardly been at the center of galactic conflict.
Of course, the punchline is that any lack of resemblance to the real Luke Skywalker is entirely intentional.
The idea behind Star Wars: Galaxy’s Edge is that Batuu, the planet where the theme park land takes place, is on the edge of known space.
As such, the person who made the bust likely had no idea what Luke Skywalker actually looked like, and had to make his best approximation based on the stories he or she had heard.