Gosh, because K/F had exactly ONE season together before this one - and that one happened to have just Worlds, no 4CCs/Euros for them to podium at, and this year, like in every other Olympic year, the 4CCs countries had their Olympic teams skip 4CCs. Where exactly, apart from Stockholm 2021 and Beijing, were they supposed to "podium internationally"?
FWIW, the skates they put out there in Montpellier would have most likely landed them on the podium had the expected teams showed up. Sui/Han were NOT going to Worlds and I don't think Tarasova/Morozov would have either. They would have handily beaten Peng/Jin, who only placed ahead of them them by 2 points in Beijing. And they probably would have come close to Boikova/Kozlovskii or outright beat them. I said it at the time of their FS and I'll stand by it still, three weeks later - Alexa & Brandon would have been on the podium in Montpellier even with Mishina/Galliamov and 2 other Russian teams there.