That's fair enough, but how many times have we seen penalties cancel out things like a forward pass or a knock on?
Obstruction is obstruction and that is a penalty. All it did in our case though was see a GC try disallowed.
Just on Siro's sin-bin, the NRL seem to have told the refs that tackles around the head are a sin-bin offence. Siro did get Kelly high, and later we saw a Knights player also binned for his arms coming into contact with the head. The problem here is that if the NRL are going to go that way, we're going to see more players in the bin than on the field. Of course, we all know that consistency is overrated so it probably won't happen that way. But neither incident yesterday was worthy of a 10 minute break for either player.
Funny how the use of the sin-bin for even the softest of high tackles has come in the same week where the major media headline was about rugby league players having brain injuries. While I do agree that head high shots shouldn't happen and should be punished accordingly, to me it looks like another in the ever growing list of knee jerk reactions by the current NRL administration.