Correction, he's looked poor on all of the climbs.
I think the real question is how much can be drawn from his pre-retirement performances. He was a full time professional athlete at the time and obviously younger. Post-unretirement he's not been a full time professional athlete, preferring to be a part-time cyclist and part-time ambassador/celebrity (which I'm not judging). The notion that he will simply turn it on this year because he has done so in the past, is a questionable one to me. He's 38, a new father, and he's making a ton more money NOT cycling than he is from cycling. I don't think the desire is there anymore. He looks like he's going through the motions more than anything.
But this is just my opinion. Perhaps he does show and prove Sunday that he's still got something.