Do we actually know the correct ruling. Should it have been a try or was it a correct ruling.
Here are the relevant sections from the Rugby League Laws of the Game
Knock on (definition)
"to knock the ball forward towards the opponents’ dead ball line with hand or arm while playing at the ball."
Accidental strike (definition)
"when a ball strikes a player who makes no attempt to play at the ball."
Restarting play at 20m
"The game is restarted with an optional kick from the centre of the 20m line if a player infringes in an opponents in-goal area"
Note on Stealing Ball
"If there are two or more defenders effecting the tackle and the ball is stolen a penalty should be awarded except if the player in possession is attempting to ground the ball for a try"
Note on Losing Possession
"If a tackled player loses possession of the ball at the moment of impact with an opponent or with the ground, play shall proceed unless stopped for some other reason, e.g. the ball has been knocked forward."
Note on Opponent touches ball
"By ‘touching’ the ball is meant intentionally playing it with any part of the person when it is not held by an opposing player. A ricochet or rebound does not count as a ‘touch’."
There is nothing related in the NRL Laws Interpretation document that I can see (although the latest version I can find is 2020, so who knows).
My read on the play is that Kennedy knocks the ball from Smith's hand as he is attempting to score. Smith had control of the ball until it was struck. Once struck, the ball moved forward towards the dead ball line.
Based on the above laws (and my viewing of the incident), the interpretation must be that striking the ball in possession of a player attempting to score a try is not classed as "stealing", nor is it "touching".
They have applied the 'Losing Possession' note.
The closest related occurence of this that I can remember was from Eels v Bulldogs in 2022 when Matt Burton knocked the ball from Mitch Moses' hands from behind as he was trying to ground it. In this instance the decision was the same, knock on against Moses, 20m restart.
I said earlier in the thread, I don't agree with the rule, and I'd like to see the same thing happen on the halfway line and compare the results.