Yard ornaments might be easy to steal, I mean, heck, people just leave them in their front yard over night. But it's still theft, it's still illegal, and even though the people made it easy there should still be a penalty for the theft.
Not saying I agree with said theft, but when making deals with known questionable actors, it's a bit of a given.
But in this particular case with Samsung's OLED, Chinese companies are not only accused of poaching their former/retired employees or stealing (or learning) know-how's or IP, but also smuggling their high-tech manufacturing machinaries out of Samsung suppliers' plants in South Korea to China outright.