Only watched the incident a few times but IMO he shouldn't have been suspended and should consider himself unlucky. His opponent only turned his back in the last moment and did have an arm free to protect himself.
IMO a side or front on tackle wouldn't have seen Naitanui suspended and the last...
Reminds me of when a newspaper mixed up Sumner and Jetta, a simple mistake and they corrected it but the next 3 articles they wrote the exact same picture of Sumner was used and labelled Jetta.