"He must have broken 20 tackles tonight, he was fantastic wasn't he? He is a class player," MacDonald said afterwards. "We knew he was going to be a guy we had to contain and we talked about it throughout the week. But talking about it, and doing it is two different things. We would have liked to have seen him on the All Blacks tour to be fair. It might have made our night a bit easier."
Mo'unga broke former Canterbury player Tom Taylor's points-scoring record in a domestic final with his haul of 25, and his second try - from a kick he received on the halfway line - was spectacular.
A major part of the Crusaders as they swept to the Super Rugby title this year, Mo'unga's development will continue in Europe over the coming weeks to the point where he is likely to provide the All Blacks selectors with a genuine extra option next year.
For Tasman, who upset the odds when beating competition leaders Taranaki in New Plymouth in their semifinal, it was a disappointing way for their season to finish. Their commitment could not be questioned and no one illustrated that more than No8 Jordan Taufua, who played on in the first half despite the pain of a suspected broken arm and was replaced against his wishes early in the second.
"He would live and die out there for the team, the province," Tasman captain Alex Ainley said with reference to Taufua.
"And he had to be dragged off the field. That was what happened in the end, when the doctor pulled him off the park. I don't think it was his say."
Taufua's injury could keep him off the field for the early part of the Crusaders' season. Coach Scott Robertson will hoping that nothing happens to Mo'unga over the coming weeks.