You can obtain same results in a finished product. The materials just reflect the quality of the product and durability. It's might be spotty as the hear may not distribute evenly, or it'll have hot spots/zones and cold spots/zones.
That's the difference between aluminum and stainless steel.
Like I said a few posts back people have been putting on pans and sheet pans on burners and grills forever.
If you ain't never been to a cookout where someone threw a sheet pan down on one of these
And cooked up some peppers and onions for some hot links, red hots or brats then idk