Well Rathireon, this may sound a bit opinionated in a way but its the truth for the most part.
See homosexuality is not met very oppenly and lightheartly in Russia. Sure they wont beat the living crap out of lesbians, but most of the population will shun them. Since most of Russia is religious, this come from experience, you can see where I'm going with this.
So now Tatu comes out like this, blasting their lesbian freedom openly like this. Trust me not a lot of People in Russia like them, because the things they relate to in their songs and what they stand for.
Now I dont care, I'm religious and I dont look at what they're doing as right, but I am not angry with them nor do I shun them. Really I could care less what they want to do, its their life. But not so many poeple think this way, and basically Tatu's image is not taken very lightly.
Anywho thats for the explanation you requested.