Of course they can't. Their rotation speed can not be as fast as Trusova. And I mean it because I and my friend have been measuring it.
Even Trusova with crazy rotation speed is borderline her quads right now.
We’ve seen Rika land 4S in practice before. Obviously landing it in competition is a completely different thing, but it’s incorrect to say she’s incapable of doing it because we have the video proof.