Hearing Minos' confident words, those skeletons looked at him incredulously, impressed by how this young Spiritual Emperor spoke of a Spiritual Demigod...
'This fellow... He talks about the God of Death as if such a person was a loser...' One of them shook its head, feeling funny since it had never thought it would have any good thoughts about that enemy.
The God of Death might be its mortal enemy, but this skeleton recognized the terrifying power of that man!
If he was not powerful, how could he have done so many terrible things and still reached the 10th stage?
As such, not only that skeleton, but many there thought Minos had a rigorous view and was wrong about the God of Death being pathetic.
But they all understood the logic behind Minos' words, so they agreed that the God of Death had not reached the 11th stage.