The thing is, he really isn't.
Also, I'd say being a top 10 point producer at ES in the entire NHL since the last lockout means he is elite at producing points at ES. Furthermore, hockey is a team sport, attributing success or rather failure of the team on the back of a single player, when said player is one of the few that carries his load is foolish at best.
Last, but not least, Sergachyov and McAvoy aren't comparable to Provorov.
Yes, Sergachev really is better than Zadorov was at the same development stage.
And, yes, hockey is a team sport, but if Duchene had a track record of being more proven as a winner (or put up elite numbers) it would be a different story. Duchene is a really good player, granted. But I've always felt Duchene was a bit overrated because he is very flashy doing his job. But if we're looking at production, Kessel produced more than Duchene and the return will be similar IMO.
Yes, Sergachev and McAvoy are comparable to Provorov the year he was drafted - not now that he's developed and is an NHL staple. I'm talking about Provorov when drafted, which is what these guys are going to be. Sergachev projects to have similar impact as Provorov when he makes the show. And, unlike Provorov in Philly, Sergachev will have the luxury of learning from masters like Weber and Markov, which will do even more for his development.
If the Flyers traded Provorov for Duchene last year, do you think they'd be better off right now? Absolutely not. Provorov is their #1 defense anchor for the next decade, which is what Sergachev will be for the Habs once Markov is finished and Weber is winding down. It reminds me of when the veteran Robinson mentored a young Chelios for the Canadiens in the 80's - that's what a Weber-Sergachev duo could be like.
You don't trade that in a package for a 5-11 center who scored 59 and 55 points the last 2 seasons and is scoring at a 56 point pace this year as well. Not to mention he comes with a $6 million cap hit.
I have no problem with the Canadiens offering fair value (even overpaying a little) but Sergachev is (or should be) 100% off limits.
If the Habs go over the top and offer...
Plekanec, Beaulieu, Scherbak, Juulsen and a 1st... I want to see a team beat that offer. The Avs have "star players" but they need a "team." 4 pieces and a 1st round pick from the Canadiens for Duchene is a big package and definitely better than what the Leafs received for Kessel... by quite a bit.