While Luna's explanation lacked the evidence Uriel needed to accept it, it did make perfect sense safe for one detail.
"But, Atomic didn't experience any pain when he saw the dog. Do you think it's because Atomic was stronger and simply shrugged it off?" Uriel said.
"Uhm, That's unlikely. Even if it was just a small chest pain, Atomic would have let us know at the moment." Luna, who above everything else wanted to proof the importance of lore in understanding cryptids, couldn't explain the different effect the curse had in Atomic and Sam.