You are not arguing that the devil and his angels have anything to do with the oblivion of the non believer? Man is not “the devils angels” who fell from Heaven. You know that.
Reading Matthew 25 straight through, one must notice that those who do not practice the Works of Mercy, and have left Christ without help when He and the least of His brethren were in need, are consigned to the fire of hell.
This warning is not directed to angels, nor to animals, but to human beings.