Let me parse the inconsistencies for you.
Prior to the Rostelecom cup, when Scherbakova withdrew, the Tutberidze camp claimed that it was pneumonia and nothing more. They forcefully denied any possibility of Covid-19. Why? Because even the slightest suspicion would have implied that the entire Khrustalny site must be quarantined, thereby also precluding the participation of several of their other skaters in the Rostelecom cup, including Valieva and Zagitova. So their official statement at the time was that they were absolute certain it could NOT have been Covid. Because if they could not rule out that possibility with 100% certainty (or worse, if they knew she had been diagnosed with Covid), they are implicitly responsible for the spread of Covid at Rostelecom.
Fast forward to Russian Nationals. To provide extenuating circumstances for Scherbakova's mistakes in the SP, aggrandize her win, and push the 'heroism' narrative, camp Tutberidze made public statements along the lines that she skated with 38 C fever, still not fully recovered from pneumonia, and refused to let her fever checked. Naturally, this prompted the legitimate question of why Shcherbakova broke the rules, as high fever is a typical Covid symptom, which is why skaters with high fevers are not allowed to compete as a precaution measure. Given that they previously had stated that she did not have Covid, her high fever implied that she could potentially be infected at that moment, and by entering the clean zone there was a risk she may have spread the infection to other skaters and/or coaches. When they realized the blunder, Gorshkov tried to do some damage control by making a public statement reproduced in the article that was linked by other posters above. In that statement, it was claimed that Shcherbakova in fact had had Covid "a long time ago", and hence that by competing with a fever at Nationals she did not in fact endanger the health of other athletes, as they were certain she had had the disease before and was no longer a potential threat to other participants.
Therefore the following scenarios are possible:
(1) They lied pre-Rostelecom and were in fact certain that she had Covid, in which case they bear a huge responsibility for sending skaters that had been in contact with her to Rostelecom and infecting several athletes like Liza T, Aliev etc.
(2) They lied in the post-Nationals statements when they claimed she had already had Covid a long time ago, and in fact they allowed Shcherbakova to skate despite showing a major Covid symptom, in which case they put Russian Nationals participants at risk.
(3) They were never certain whether or not she had Covid at any given time point, so they lied both pre-Rosetelecom and at Nationals, in which case they endangered the health of other athletes at both events.
What is certainly NOT possible is that they could have told the truth on all occasions, as this would imply that they were 100% certain that Scherbakova both had and did not have the disease in November -- which is a logical impossibility. Ergo they must have lied on at least one occasion.
Q.E.D.