In the chain of contenders the weakest link is Rika. It's because she is a contender for such a long period of time. Too many factors have to play for her to be in the best possible shape exactly prior to the Olympics. With the Russian ladies we have a pool of at least Anna, Sasha, and Kamila. Then we have "veterans" Liza, Zhenya, and (who knows?) Alina. Finally, there are potential newcomers with big jumps who already showed their potential: Darya, Maia, who else? So, we have more than a year and a pool of up to 10 skaters vs. just Rika.
Once again, if Rika manages to develop her tech, bring back 3Lz, stay healthy, overcome all puberty related changes, etc. then yes, she is a podium contender. But there are a lot of "ifs".