Yes, I'm also afraid of that. The course looks splendid on paper, with three time trials, the toughest version of Mount Etna, some punchy mountains in the middle part and two colossal mountain stages in the last four days. However bad weather or corona could be the bummer and lead to an anticlimax. Let's hope not.
Astana could be very strong, although it's not clear who of their three big names can actually win the Giro. Some days Vlasov looks stronger than Fuglsang, while López will lose a lot in the time trials and might turn into a super domestique in the mountains. Thomas seems the obvious favourite, because he can take a big lead in the time trials and he has a strong team. Nibali seems to be in good shape. Kruijswijk probably took the right decision to skip the Tour and confront his old demons in Italy.
****Thomas, Nibali
***Kruijswijk, Fuglsang, Vlasov
**S. Yates, Majka, López
*Kelderman, Zakarin, Meintjes, Hart