As soon as I hear people say the ball went (
insert distance here) forwards, I know immediately that they don't understand either the forward throw Law or the guidance to referees.
I presume you are talking about this try?
https://youtu.be/kdPNu_TlEX0?t=126
There is nothing wrong with the pass.
1. It was made to look worse because the passer was falling and slowing, thereby exaggerating the apparent forward travel of the ball.
2. The forward travel of the ball was purely down to momentum of the passer. If the passer was standing still and he executed the exact same passing action, the ball would not have gone forward from him.
The issue is, and has been ever since 1948 (when the RFU issued a Case Law Ruling), whether the ball was thrown in a forward direction, NOT whether the ball traveled forwards.
[TEXTAREA]Case Law:
"If a player passes to one of his own team who is in line with him parallel to the dead ball line, both players running towards the opponents goal line, must not the pass be a forward pass in relation to the ground, owing to their forward movement?"
R.F.U. Ruling:
"Yes, but it is pointed out that the definition of a throw-forward is not decided on relation to the ground, but on the direction of the propulsion of the ball by the hand or arm of the player passing the ball"
- as published in Royds, 1948[/TEXTAREA]
Saying that the ball traveled x metres forwards has no relevance to Law 12.