May I ask you something?
Do you really believe from the bottom of your heart that "You are the only one" would be considered as one of the favorites if it would compete for any other country? Let's say for Georgia, Moldova, Croatia, Germany, ... or whatever. If you ask me I'd say that none of those countries would stand a chance to even reach the Top 10 with his song - some countries would even struggle to qualify imho. What does this say about the quality of "You are the only one"?
Let's face it, the (probably unavoidable) success of this entry will consist of 40% Diaspora-voting (In Germany alone there are around 1,2 mil. Russians - that could also explain how the 12 points for Polina came to be) and 40% "friendly Neighbors"/old friends (Georgia,Belarus, Ukraine, Estonia, Latvia, Lithuania, Moldova, Azerbaijan, Armenia, Cyprus, Greece) - the remaining 20% will most likely emerge from an over-the-top-performance.
There simply isn't any other country in Eurovision that can rely on especially the first two factors as heavily as Russia can.
Yes, you may ask. As for your question, I have no answer, for it would be only a guess, just like you are guessing. The fact is that we would never know. The only fact I reckon with in this argument is that Russia gets always more exposure, and whether it is for the right or wrong reason, it doesn't matter, but surely it adds to the fact that people are always paying more attention to their entry. So, my advice to all haters would be: ignore Russia, don't talk about Russia, for as soon as you start engaging in these endless debates, you are giving them deserved/undeserved exposure.
Finally, if you truly believe in what you are saying, then Slovenia should withdraw from ESC once for good and never look back, for obviously in your opinion, certain countries have no chance of winning regardless of the song's quality.
And to your info (and everyone else's), in fact, Yugoslavia withdrew from ESC already in the 70's exactly because of political voting. And back then Yugoslavia was sending her bigest music stars, yet nothing helped. So why am I mentioning this? We like to discuss Russia, Eastern block-voting, Balkan-block voting etc., but whenever it comes to the injustice caused or inflected on others by Western/Scandinavian countries, no one gets upset, no one complains, no one protests, no one BOOES, and most importantly only a few of commentators here from these countries are ready to admit that everything what is reproached to Russia, can be easily thrown into the faces of Western countries. To sum up: as we say here, first sweap the floor in your own house, and then tell your neighbour how dirty his/her floor is. I repeat, double standards, double standards, double standards.