You can also scrape a pipe with a flat spatula. Of course this is not so good, because the spatula can rest only at one point of the edge on the round profile. The situation is different with flat profiles. With a spatula can turn a fried egg in the pan, with a nail – that’s probably hard!
So if you grilled sensitive things on a round steel grate, you will notice that when you like to turn something on the grate. Unlike the grill of our grill, the flat surface can be sensitive food such as vegetables or fish solve more easily. You can tell that even when cleaning later.
Ad your two cents!