The front on view of the DG is not anywhere near as central as the one from behind the posts so distorts where the ball is going (thus looks like it is going wide)
The camera angle from behind is far and away the most telling (like other angles used for tries).
This has the hallmark of a Saints (or big/top 4 team) to win at all costs officiating.
Absolutely no excuse to not go to the VR and as for the knock adjudged by Smith in the first half that is even worse. Even JD called this ffs!
The RFL and its officials are letting the sport down on a massive scale..