No kidding. I'm with you, I wouldn't have thought it possible, but after today it's definitely possible. He also said he was cramping in the last few KMs of today's stage which is part of why he couldn't do more than what he did. It sounds like he's planning on trying to both help Enric get a higher placing and get himself another GC top 10. He did say a couple years ago that he prefers racing GTs to chasing one day or one week races. He said something about GTs aren't as tiring as chasing other races for the same number of race days. Maybe he wants to put that GT top 10 record so far out there that we'll never see anyone come close to it again in our lifetime?
Impressive as the record is, suppose it's the best he can do if he knows he would never be in with a chance of winning. Suppose it's better than being a dom for a team mate.