His 2017 results were NOT as good as the previous 2 years when he won WT stage races and the Giro.Perhaps true but he was as good in 2017 as in the preceding years. Especially in the Vuelta.
Yes for 95% of the peloton his 2017 results were great. For him they were not acceptable. 2nd Best is Not good enough!
2nd Overall Paris–Nice
2nd Overall Vuelta a Andalucía
2nd Overall Volta a Catalunya
2nd Overall Tour of the Basque Country
5th Overall Vuelta a España
1st Stages 20
Combativity award Overall
9th Overall Tour de France Combativity award Stages 13 & 17
10th UCI World Tour
EDIT: Removed 2017 Vuelta stage victory.