No, Yana wrote this because she hates Eteri as hell, history of this conflict is well-known. Sasha's parents (let alone Sasha herself) could't even write this text, it is written by professional speech writers. It is obvious for any Russian speaking person.
Exactly! 99% understands what it's all about. Only thing is one part of fans just reacted "what a great punch to Eteri's face, bravo Yana!", but most part is like "why the hell is Yana annihilating Sasha's reputation?"
And only 1% thinks it's a charming peaceful post.