That's fair, but he also had two years of pro experience under his belt that Scheifele didn't. Also Scheifele started tilting the ice as well once he got acclimatized to the NHL. He also substantially tilted the ice at the WHC (I know small sample). I appreciate what Burmie brings but I think you are fooling yourself if you don't think that not only is Mark going to produce points but he's going to be an excellent possession player. He has all the tools, and more importantly he recognizes the importance of and is driven to be an elite two-way player.
I think it is well beyond the realm of possibilities that Scheifele could and I have hope it is true. I would not say he will or foolish to think there is a chance he couldn't as I don't think it's a certainty. Some players can be like that. Some players can be extraordinarily dynamic offensively and have tools and want to be a two-way player and not drive puck possession. The reasonings why this happens is still a part of research although we have some ideas.
Burmistrov didn't push the play well in his rookie year and Scheifele did improve marginally from a 47% player pre-mid November to a 48.5 % player post-mid November (although his QoT also rose a lot at that time). So, I believe that acclimatization could be a hypothesis; however, I do have one problem with tossing out the significant differences between the two as nothing but need of acclimatization.
The biggest reasoning is because the difference we see in the forward and defenseman Corsi% development curve. On average, defenseman enter into the league at an older age. If acclimitzation was a major factor, you would expect the growth curves being somewhat similar but translated over to a bit of an older peek. However, what we do see is no peek with defenseman but a steady downward slope. This suggests that there is survivorship issue with only elite defenseman coming in at a young age and that age (and the developmental/regressing factors that come with age: strength, reflexes, etc.) hold a far stronger effect over Corsi% development, so comparing at similar age is better than similar years of experience.
Hypothetically if Burmistrov never went to the KHL:
Do I believe it is possible that Scheifele could grow into being a better Corsi% and p/60 player? Yes.
Do I believe it is possible that Scheifele could improve but not surpass Burmistrov's Corsi% development? Yes.
Do I believe it is possible that Corsi% players with bad p/60 can develop into a good p/60 player late in career? Yes. See Andrew Ladd in Carolina as one example (have to use 2psh% as Corsi% proxy as pre 2007-08).
Would I still have voted Scheifele before Burmistrov in the AIH Top 25 U25? Most likely.
Would I vote Scheifele before Burmistrov in the AIH Top 25 U25 for this summer? Probably although a lot of that depends on how Burmistrov would have performed, but my best guess is yes.
Do I really wish we had both players? Hell yes.