I personally like the idea because it would be a great help for tournament organiser (or at least to me personally). It would be easier way to follow how far the games are and how fast they move on. Also, in the tournaments where the number of round is used in scoring or something it would be a huge help.
But I think that this change/add-on has a really low priority because not many people benefit from it and it's not that important to add.
But I personally like the idea