Steve Hansen has appealed for rugby's rules to be simplified after a referee's wrong call cost the All Blacks a deciding Test win against the British and Irish Lions.
But Hansen on Sunday admitted the All Blacks had also failed to make the most of other opportunities to win the third Test in Auckland which ended in a 15-15 on Saturday to leave the series drawn 1-1.
Immediately after the Test, coach Hansen had refused to debate the controversial call by French referee Romain Poite in the dying seconds of the game when he awarded the All Blacks a close-range, kickable penalty and then changed his decision to a scrum.
After a night to reflect, Hansen said Poite had been wrong and it was up to the bosses at World Rugby to make it easier to control the game.
Tough Ol' series but gotta say well done to this absolute champion on bringing up 100 tests for the All Blacks. ??? pic.twitter.com/u1A0qzNcBp
— Sam Cane (@SamCane7) July 8, 2017
"There's always going to be human error, it doesn't matter who it is," Hansen told AFP.
"But what we've got to do is help them, not bag them.
"That's a World Rugby thing. They lead this game, they run this game and with people within in that we've got to help the referees so it becomes easier and simpler for them to ref the game. It's a really complicated game."
In a climactic finish, with only seconds remaining and the score tied at 15-15, the ball went forward from Lions full-back Liam Williams and was played by team-mate Ken Owens, who was in an offside position.
All Blacks centre Anton Lienert-Brown pounced on the ball and was heading for the tryline when Poite blew his whistle and awarded a penalty for offside.
— British&Irish Lions (@lionsofficial) July 9, 2017
But after viewing replays and conferring with the other three match officials he changed his mind to say it was an accidental infringement by Owens and the penalty was downgraded to a scrum.
"I think they just overthought it," said Hansen.
"If he'd trusted his instincts and went with them, he would have made the right decision. If he had felt like it was accidental, play on and LB (Lienert-Brown) scores under the posts and we wouldn't be having this conversation.
"But he didn't and then he got caught up in overthinking it and made mistake."
"I bet he's not feeling good about that. He's a good man Romain and he hasn't done it deliberately."