What about match points though?? Two table points are given but are any match points given (say a 24-0 win or whatever)?? Otherwise it's a win but with no scoring.
Just to be clear, it is only competition points awarded. Nothing else in the table changes, so the number of wins and match points all stay the same. It is more like bonus points, just without a separate column.
The only reason I can think to explain them is so that at the end of a round a team will not fall down the table as a result of not having played. Not that that should matter as that would quickly be corrected anyway. All the byes occur in the middle of the season so there are only a few weeks between each team taking them.
Incidentally, in union Super Rugby also has two byes and awards points in the same way, but the AFL season has one bye and does not give any points for it.