He attacked a lot more than once on 21 stages! He just couldn’t get away alone as the top riders were so closely matched. That’s why it was always just a group of three riders, with everyone else trailing behind. The other GC riders couldn’t live with the digs the top 3-4 we’re putting in.
I was rooting for either Landa or Hindley once Bardet went home, but to say Carapaz didn’t attack isn’t right.
If Carapaz didn’t have the legs on stage 20 then there wasn’t really any other tactical option for Ineos to take when racing up the Marmolada. He looked tired and pale before they even got to the start of the last climb