The difference between rugby league ( I don’t know about Union ) is the game and the clock is always stopped and the referee asks for the video ref’s input. The video ref knows he is being heard and he carefully explains his thought process. In football the VAR can chirp up in the referees ear whenever he likes. Along with the two linesman and the fourth official. The four of them will be chatting away to each other constantly the whole game. I really don’t think it would be the enlightening experience some people are anticipating.
Anyway, you are likely to shortly ( kind of ) get your wish and we can all see for ourselves. Howard Webb is currently overseeing a trial in America where the conversation involving the VAR is being released after the games have finished. When he returns to England it’s expected he will use his findings and trial something similar here.