All facts are on video and in the press, in Medvedeva's own words.
Which for the past 3 years up to the last day of the Olympics was pretty much this:
https://www.youtube.com/watch?v=3HdCU9pH-pQ
verbatim:
- tell me what kind of person Eteri Georgievna is?
- she is a very good human being, if you ask her, she is always ready to help you, extremely supportive, and unquestionably a great coach, a wonderful woman, very feminine, and i am confirm she deserves great respect.
.... and that is how it was for years, interview after interview... ridiculing those who spoke badly about Tutberidze.
https://www.youtube.com/watch?v=Z2Uv_Ub77GY
... until she lost Gold.. and then in Kiss and Cry she said to Eteri
https://www.youtube.com/watch?v=d1lymUbvbbo
accusation: "You did everything to give Alina the winning SP and FS"
sarcasm: "Congratulations. you do now have an Olympic champion" (Alina, not me).