Last year he still finished 14th at the Tour with a totally improvised preparation after rushing back after the surgery, so he should still have something left in the tank.
When he had his meltdown at the Tour this year he also had some family stuff going on (his Grandfather was rushed to the hospital and died 2(?) days after Aru's DNF, apparently they were really close).
He was also good in the Ventoux race and in the prep races before Lombardia. He also raced too much wen he was in really bad shape during the last few years, so it wouldn't surprise me if that was also a factor.
When he had his meltdown at the Tour this year he also had some family stuff going on (his Grandfather was rushed to the hospital and died 2(?) days after Aru's DNF, apparently they were really close).
He was also good in the Ventoux race and in the prep races before Lombardia. He also raced too much wen he was in really bad shape during the last few years, so it wouldn't surprise me if that was also a factor.