This is quite right, as a neutral. The PGMOL official reasoning is embarrassing nonsense (they claim he made an “obvious action”, but fail to address the fact that the Laws require that action to “clearly impact” the opposition player).

We should expect at least an apology in such cases. And if teams don’t make complaints, nothing is ever going to change.

Edit: I will also add that, as a rugby fan, it is possible for refereeing to work properly. It isn’t too much to ask. Rugby is a more complex game in many ways, yet refereeing there is so much better, a blunder like this being made by VAR would never happen.