Just my opinion but, I think last year might have been the outlier and raised expectations a bit too high.
Basically this.
What is interesting is that based on stats, we should be top of the league. We are (or were) leading the competition in metres gained and most of the key metrics suggest we are dominating games.
The issue, and it's not so different from last year, is that we play a hyper-structured style with only a modestly talented side. We have a very solid core in the middle forwards and spine, but no strike on the edges at all.
Last year we were able to get by with a very simplified attacking game based around good middles and literally one or two set plays, always to the right edge, which we ran ad nauseum. This year opposition teams have largely cottoned on to our repetitive attack and so, despite dominating territory and possession, we can't score tries. It's about as simple as that, and there's no easy fix because we have no threatening backs or edge forwards to add to the mix (although we could really do with Niukore back from injury).