No he's looking at the Tah as they pack down and should be thinking goodie Tilse is on, Fatcat is gone and hasn't come back on. Yes the runner should be pointing it out to them but he should also be paying attention to what is happening.
@Gel why did the uncontested scrums "smell funny"? 10-15 minutes before the scrum penalties on the Tahs line Fatcat went off to the blood/head bin on the second attempt to patch up the bleeder. He didn't come back in the blood window of 10 minutes (IIRC that is the required time frame) or was ruled concussed. Ta'avao was replaced for broken nose and failed concussion test I thought was the call and Tilse came on to replace him as Ryan had previously been replaced by Fatcat. When Fatcat went Ryan came back on, so one would have to think as a Captain, "hey didn't Ryan get subbed, he's back so the other two must be broken. No more props, but lets waste a penalty opportunity and have uncontested scrums which will allow a backrow which has caused us grief all night to have a flying start at us by not having to push in a scrum."
I don't see how the uncontested scrums "smells", I don't see anything untoward, or if there is Gibson is unbelievably good at setting up the situation, so good I wouldn't think the Tahs would have gone to sleep after scoring three tries.