Very funny data this stage
1. They crushed the record.
View: https://twitter.com/ammattipyoraily/status/1638220376973910024
2. Kuss' Strava file has him doing only 5.75 W/kg finishing 53s down. From top of my head I guess the leaders did only like 5.9W/kg instead of the 6.1ish this climbing time should be. I need to rewatch were Kuss attacked, where he got caught and where he got dropped. He did the steep section at 5.75 W/kg as well, so it was a pretty heavy positive split climb.
3. They did the false flat really hard. Kuss was basically doing 5W/kg before the climb, which doesn't help climbing time.