Yes I agree. But current protocol appears to be either "onfield we have a try" or "onfield we have no try". The old (& better) "try, yes or no" seems to have been relegated. I expect it was a reaction to refs appearing to abrogate their responsibility of making decisions but may now have led to incorrect decisions.
I much prefer the method where the referee makes a decision and the video has to show clear evidence the decision is wrong to overturn it. This works well in the NRL and the NFL; there is no reason it should not work well in RU.
The problem with this decision that there was clear evidence it was not a try, and even a law that covers that scenario....
[LAWS]Law 21.17
DOUBT ABOUT GROUNDING
If there is doubt about which team first grounded the ball in in-goal, play restarts with a five-metre scrum, in line with the place where the ball was grounded. The attacking team throws in.[/LAWS]
The AR said he thinks its a try - that sounds like doubt to me, so the TMO should have ruled accordingly - no try.
I have had a rant about this once before with regard to Jerome Garces. A player (Mike Brown IIRC) grounded the ball on his own forearm. Jerome Garces said
"I think its a try, but you should check". The AR should never say what he
"thinks" he sees, he should only ever say what he actually sees
1. Try
2. No-try
3. Not sure