Definitely ahead of Semin but behind the big 4 Russians. I don't think he is a top 10 forward atm but he could be behind Malkin, Datsyuk, Kovy, and Ovi over the next 4 years and still be a top 10 league forward. Have to give credit to modern Russian skating programs.
This is my opinion of what it'll look like going into next season. I expect Ovechkin to bounce back a little bit and Burmi to continue to develop as he has, he's the most underrated one here imo and I think he's gonna be better than Radulov in the future unless Radulov is like a 80 pt player. I like Grachev more than Dadonov but tbh, there's a huge talent gap b/t 10th and 11th. Yakupov is probably gonna go right into this and maybe Tarasenko if STL gives him the TOI.
meaning he is a top-10 russian....clearly the best in the KHL and after your "short list" in the NHL the next highest point totals are Grabovski and then S kostitsyn...
so in answer to your question, yes....
Both Grabovski and Kostitsyn are not Russians, they are from Belarus. The difference between Russia and Belarus is similar to the difference between Czech Republic and Slovakia, USA and Canada or between Finland and Sweden.
These guys arent even among top 15 best russian forwards.
What other Russian forwards in the league aside from the ones already mentioned are better? Those would definitely at LEAST be top 15 in the NHL. You can argue some in the KHL are better, but that's a different story.