After he dominated the first TT, putting in almost three minutes into Quintana, I started to feel more confident about his chances. I have to be honest though, before every mountain stage (MTF included or not), I was half expecting him to blow up and lose any chance on not just the overall, but the podium, so for him to still be where he is, with a very strong chance of winning the overall tomorrow, is exceptional. Whatever happens though, he's had a great Giro. The poopgate incident and the time he lost certainly brought life into the last week of racing, and probably made this way more dramatic than it needs to be, but who knows, perhaps had he not lost those 2+ minutes, the others would have been inclined to attack more, particularly Quintana, but we'll never know of course.
At any rate, I hope he overtakes all three men in front of him and finishes the Giro in style. That will certainly silence the critics and give him even more confidence for future GT's, where he now surely must be regarded as more than a serious threat, even to an in form Contador or an in form Froome and his Sky armada. Yes, Quintana may not have been in his best form here, nor was Nibali as good as he was in years past, but I don't think this is Dumoulin's limit either. I think he can ride even better.