It was 2021, and since then, O'Connor has been very up and and down (mostly down, i think) and then not looking convincing on the first MTF. Of course he was 4th in the Giro, but I think the general consensus was and is from the teams that that wasn't particularly convincing either. Couple that with him having a Thomas de Gendt 2019 Saint Etienne day out front (or 2012 Stelvio) and you get a result like this today. Nobody was softpedalling, but on the other hand, no teams were really comitting 100% eitherI get it when somebody's completely unproven. You do see a bit of flexibility given and sometimes there are some oddities in the Vuelta with people who have more left in the tank at this time of the year than others overachieving, like when Tomasz Marczyński got multiple stage wins one year, and there are a few examples of riders who are completely unproven - as Gee was in 2023 - or who have long been part of the péloton and are known to be no GC threat, who have been able to escape and win in that fashion. Ben King in the 2018 Vuelta is a good example of that. Maybe even Jay Vine in the 2022 Vuelta.
Gee's 2023 Giro was basically like Johnny Hoogerland's 12th in the 2009 Vuelta, so people didn't really have any idea of whether he could actually do a GC bid of any kind. O'Connor in the 2022 Tour is similar - he'd got three GTs under his belt, all between 20th and 32nd, so he could clearly climb reasonably well but he wasn't taken seriously as a threat and allowed to get up the road repeatedly, but now he's not only scored a top 5 finish but backed it up with another one (and a further top 10 to boot), he's really too dangerous to allow this kind of rope. I mean, so was Kuss, even taking into account that he'd never really raced for himself at a race like that before, he'd still been 8th in 2021 and had 5 other GT top 20s just because of his climbing performances in service of leaders or escaping in breaks. It wasn't like his being able to climb with the best should have been news to anybody.