Mostly the course.
Checked, I gave it a 5, which still seems correct. Not sure if I wrote something, not going to reread the whole thread.... But if I did probably something similar to this: The mountain stages all are nice enough, that's why it's not a 4. But the way they were put together, positioned, problematic. And of course each mountain stage itself has problems too. Gran Sasso 4 km, not much going to happen. but that's actually still ok at this point in the race. Crans Montana the placement already bad, plus Crans itself is not that hard a climb, so while in the third week action on the Croix de Coeur could happen, as first real mountain test it was not going to have much racing there. All Crans Montana. Bondone, lots of climbs, but logic to wait for the final climb really. Regardless of the GC situation. Zoldo good, nothing to complain about the stage itself, but the placement? Queen stage, 3 Cime the next day? More often than not, not too much is going to happen. So everybody waits for Tre Cime, but a) Monte Lussari! Not going to go on 50 km raids with that looming. b) Tre Cime with its steepness logically makes riders wait for that. Instead of having the Giau as decisive climb. Then the Monte Lussari, which is ok, don't need somethign like that too often, rather have a Mortirolo ITT, then a super-mega-ultra steep one really. Still hard enough.
Then of course the wind on Gran Sasso and Crans didn't help at all. Having no TT rider ahead before Crans neither. Having to cut the Gran San Bernardo neither. Having 3 guys close together forCrans, Bondone, Zoldo, Tre Cime... of couse you wait. Ok, even I expected a bit more on the Giau, didn't expect it to be ridden that slowly.
I give it a 4, but since it's the Giro... still liked it. (So doing the opposite of Tonton...)
Little of that is the riders fault, having Remco out, who would have presumably forced others to be more offensive, having Tao out, who looked very strong and would have given Ineos a real second option is not the riders fault. It just happens. With such a tight GC after the TT, and he top guys being matched pretty evenly, riding the way they did was the logical way. Nobody in his right mind would have attacked early on the Bondone stage with this situation. Nobody in his right mind would have tried anything on the Giau with Tre Cime and the ITT coming up. Ok, they could have ridden it faster though, especially Jumbo since that really looked like a good stage for Roglic to get a stage. But finally the "win" there wasn't that clear, Thomas had dropped him for a short while.
Positive, the escapes were interesting, the first week actually designed well, it's after that the problems with the course started. The young Israel riders, not only Gee, also Frigo, Berwick and Riccitello a big plus. Healy too. De Marchi who keeps trying to get that stage. Zana very positive too, after Masnada basically is disappearing, Zana showed that Italy still could have a GC rider in the coming years. Pinot still there, very nice. Negative of course Pozzovivo out, down to 3,5 for this Giro.
Bad course, a bit of bad luck with wind and covid and crashes then made it even less spectacular than Vegni probably hoped, but he wasn't going for a wild spectacle before Zoldo with this design anyway, The Giro started in Crans, the decisive phase on Zoldo, the highlight the Tre Cime and Lussari climbs.