It's not wishful thinking. It's the reality, Demidov is playing against junior B level of talent and most likely will do again next year. The NHL scouts have not watched him play at all in person only on video nor in international tournament. It might sound absurd to you but NHL scouts love watching players live especially head scout who have to decide between a lot of players in similar tier. Finally, the russian factor is often downplayed but we still don't know what will happen next year in Russia. Kent Hughes even addressed it last year by saying that not watching Michkov play in person was a factor in their decision to go with Reinbacher.
Overall, If I go logically for a team like Chicago or Columbus (with all the off ice issues they had) or Anaheim (who look pretty close to be in playoff contention) they will have to be 100% convinced that Demidov is him and that he will improve their team while having very special talent at defense available and ignoring them. NGL I feel this is the best year for defender that I have ever followed, even better than 2008, personally I think if you are a team that need a defender this is your year, you cannot mess up with the defender if you go for a forward you need to hit, you simply cannot miss.
I am not even convinced the Habs would go with Demidov, with everything Hughes has said prior regarding Michkov.