I think it's worth pointing out that this is a reconstructed breed and not the lineage used by the Mexica. Those dogs died out with European contact.
https://youtu.be/osMu6i2txFA
Did the original breed look anything like the current one? I was just about to say it's uncanny how the ancient Aztecs and Egyptians had a similar looking death-related mythological thing (this dog and Anubis).