I think he rode an exemplary first two weeks during the Giro. He certainly didn't lose time due to mental weakness or not being attentive. If it weren't for his technical inability to ride on gravel, he would have been only seconds behind Bernal at the start of the Zoncolan stage.
and he likely does not lose 90 seconds on Zoncolon if he didn't have to waste energy after being dropped on the descent of the first major climb. He was nearly a minute down at the end of the first descent.
HIs positioning cost him that giro, not his overall level. He ended up going kablammo by wasting energy