Well the number cited was 7.4, which should be higher than Ciccone is able to do. The best climber in the race doing a 7 minute section as part of a 30 minute effort faster than the best 7 minute effort of the 20th best climber isn't actually that strange. Pogacar destroyed Carapaz' attempt to win the KoM on Planche de Belles Filles in 2020 as well, although PdbF is obviously longer.If I remember correct Ciccone took it quite easy and just went all in on that short steep climb to get KOM points, getting ahead of Powless in the competition. After all he was 6 minutes behind Vinge on the stage. So not an entirely fair comparison I think.
Think you downplay Vinge's performance somewhat. Rest was just terriable?
It was a very difficult time trial, coming off the back of 3 mountain stages and a rest day. Add in the up and down first half of the TT, and then a climb on the TT bike, and it makes it much more likely for riders to not get close to their best W/kg. Vingegaard got pretty close, but Combloux in isolation wasn't a better climbing performance than Marie Blanque that Tour, and that makes sense. But Pogacar especially was riding away from everyone but Vingegaard with his eyes closed that Tour, and then he takes only 15s out of Felix Gall? That's just not Pogacars level. Watts2Win, which isn't that reliable and has a tendency to overestimate, has Pog at 6.4W for 14 minutes, which is actually much worse than he did in the Planche de Belles Filles ITT. And most riders didn't break 6 W/kg for 15 minutes, which is just bad by any modern standard, let alone 2023.
So yeah, Pogacar was terrible. As was everyone else.