Days out from the Kiwis' squad being named for the tournament, Taumalolo made the shock decision to pledge allegiance to Tonga rather than his country of birth, neglecting to inform New Zealand officials along the way, leading to accusations of cowardice from both Kidwell and Kiwis captain Adam Blair.
But following Saturday's historic 28-22 victory over New Zealand, Taumalolo revealed regret at the way the situation played out.
"I definitely could have handled it a lot better to be honest, that was probably the biggest [regret]," Taumalolo said.