I think NZ forwards has lost a bit of their grunt and it seems like the tricks of frustrating opposition at rucks aren't part of the current team's setup. There's a bit of "meek and mild" -ness to that pack. They are talented players, that I won't deny, but it seems like the "dark arts" are not present anymore.
And the other issue is NZ's goalkicking has been somewhat of an issue the past year. They are juggling between DMAC, the Barrett Brothers and Mo'unga. But all of them have a tendency to miss a couple of kicks at goal in the match. And in tight affairs, it's usually your goal kicker that helps you win the match, not your try-scorers on the wing.
Plus how many chances will Rieko Ioane get before they realise his mediocrity. Last year he had a rather poor showing and now again, dropping a ball on the goal line, that's just pathetic.