First of all, investigation has not even really started.
Second of all, doping in figure skating is pretty pointless.
Third of all, You are totally doping yourself, it's called therapeutic exceptions. Norway/Sweden were doing it with great success, US is also totally guilty of that (Simone Biles)
As far as I know substance is similar to meldonium for which a bunch of russians including Sharapova were "busted". The whole thing stunk because that substance was not even proven to improve results and the reason why it was put on the list is because the drug itself was used only in Russia and not in the West.
Plus the test itself was not not done in timely matter and I understand is technically invalid because of that.
I can't exclude third party involvement in all of this. She is a hands down best skater in history of the sport. Can you exclude CIA?
Trimetazidine has been on the anti-doping list since 2014. The claim that her grandfather was taking the drug for his heart condition is extremely convenient and coincidental. The coach, Eteri Tutberidze, is famous for producing these girls to win gold medals at an age where their bodies are more able to perform difficult moves like quads. She is the most sought-after coach in Russia for figure skating champions, and her prodigies usually only last a couple of years, because their bodies change as they mature to full adulthood. IOW, the coach seems to be running a little figure skating factory that is likely using the doping to keep her string of successes going.
Kamila Valieva's doctor, has an interesting history:
Filipp Shvetsky can be seen rinkside during Russian figure skaters' competitions and practices. The towering, dark-haired physician works at a war veterans' hospital in Moscow in addition to treating members of Russia's figure skating team.
Shvetsky and several Russian rowers were suspended from the sport between 2007 and 2010 for anti-doping violations, said Jim Walden, an attorney for Grigory Rodchenkov, the former head of Russia's anti-doping laboratory who turned whistleblower.
Rowing's international governing body said at the time that the violations were related to prohibited intravenous infusions.
After his suspension was lifted, he joined the national figure skating team. The blame, Shvetsky said in a 2016 interview, was put on him in the hope of reducing the athletes' suspensions.
See Reuters report:
Formidable Russian coach and doctor with doping past in focus over Valieva case
I think that the IOC made a serious mistake in letting Valieva continue to compete. It sends exactly the wrong message both to the Russian Olympic Committee and to those athletes who must compete in future games. If the IOC continues to look the other way, then we can expect other serious contenders to start their own clandestine doping programs.