Each brand is trying to find a way to get a leg up on the competition in a tight market space. The above picture is what I found on my last grocery run. What caught my eye was the asterisk next to the non-GMO popcorn claim. My guess was the ingredients list would include soybean, canola, or corn oil.
The temperature for broiling in an oven is 260 degrees Celsius or  500 degrees Fahrenheit. Medium heat is about 177 degrees Celsius or  350 degrees Fahrenheit.
So we call it grill when cooking over a heat and broil when cooking under a heat source. Broiling temperature is normally about 500 degrees Fahrenheit. When you are broiling, you have to make sure that you turn the item you are cooking. For a moment think that you are broiling a steak.