I think it would have helped the prosecution case, in this regard, had they produced anything similar to the Weinstein trial, where, for example, several women were independently able to describe parts of Weinstein's body that wouldn't ordinarily be in the knowledge of the general population.
Unfortunately, they did not, so the debate then turns to whether each accusation is corroborative of any or all of the others. Bare in mind, the alleged offences differed significantly, and at no point in the trial did the prosecution try to paint a picture of a similar, recurring pattern of behaviours. I think they made a mistake by not going for far more of a 'concerted course of conduct' angle, but perhaps they understood themselves that Moorov is shaky and open to question, so didn't think it was wise. They have to work within the bounds of the law.