Agree and disagree. At this stage in the proceedings, Valieva is clearly colluding, inventing/backing up crazy stories. She's probably willing to do this as no-one wants to be found guilty, but even if she wasn't, she'd have been persuaded it was in hers and everyone's interests.
That doesn't allow us to be sure that she had any clear idea what she was taking beforehand. Also "the Russian athletes" is not a monolithic body. I believe some of them aren't taking more the the unholy supplement salad Valieva was on, which is bad enough, but legal. "The Eteri group" is another story. I believe that there, yes, every single aspect of the (young, influenceable) athletes' lives is controlled in a manner that it isn't in, say, the Mishin group. And that they have no choice and do what they are told, or else, they're free to go. So they're "guilty" of accepting the super harsh training methods because they think it's their best shot at making it, and once you've done that, it's an easy step to accepting whatever supplement the good doctor is giving you. Brute coercion never has to enter the picture. A climate of "everyone's trying to get an edge", a siege mentality encouraged nationwide, the huge pool of wannabes snapping at your heels, expert use of the carrot and stick method...I think their guilt extends as far a suspecting some "vitamins" aren't entirely above board. But remember that for a very long time everyone bought that their success was owed entirely to the harsh, increasingly decried but efficient Eteri method. Why shouldn't they too? In fact doping alone wouldn't have produced those results.
Long post, but I really think people are over-simplifying a complex psychological, social and political situation. Which doesn't change the remedy: the sentence was correct, heads need to roll among the truly guilty, but this isn't happening unless there's a second Russian revolution.