I think we shouldn't go on this statement. RusFed might have known that the sample was delayed, and that could have been a reason why they dragged their feet with selections to the last moment, but there could have been other circumstances we don’t know about. For example, samples from Trusova or Scherabkova might not have been in either, but tested clean when the analytical suit was completed--too late to make a substitute. We know from the team members' testimony during the Olympics that they waited late into the night not knowing who skates, including the women. That is more likely imo, versus RusFed decided they can bury the positive test in some kind of collective delusion event.
At any rate, there is no shortage of things RusFed did wrong since, so I would focus on that. Because their treatment of the clean athlets after the event was horrid, making them compete with Valieva and close ranks. This should have never had happened and those guilty of promoting jaded view of sport and glorifying cheating should be removed from sport.
This is what should be persecuted, this is what should be condemned and deemed unacceptable. In addition to treating athlets as serfs, not allowing them to structure their lives and careers as a free person should be able to.