I'm not sure I agree with that, it seemed quite clear that the ball didn't touch his hands. That being said, for me I always thought if the ball hit the body above the waist it was a knock on, although Cummings said otherwise so I assume I'm wrong. Assuming it isn't a knock on off the body I don't really see the problem with it being a try.
I think you may be in a minority, perhaps no greater than one, to deem that quite clear.
As good as Saints resilience was, the game management by Leeds was outstanding. I am struggling to recall a better performance by any side than that of Leeds' in the first half. The fact Saints went in so close is incredible testimony to them.