There seem to be four very prominent biases in these polls:
1) Recent players have received more votes (e.g. Gallagher and most of the top 10, only old guard player to receive substantial votes was Damphousse).
2) Recent veterans have received less votes (e.g. Price, Plekanec, Pacioretty).
3) As you point out, unfair treatment by Bergevin has led to greater votes (e.g. Subban, Radulov, even Galchenyuk - lol, should not even be considered at this stage).
4) Recent successful seasons result in more votes (or the inverse) (e.g. Gallagher, Pacioretty)
The fact that Pacioretty might not even hit the top 10 is completely ridiculous. This is a guy that has scored 30 goals a handful of times, has been a career Hab, a captain, and has been the Habs' defacto best forward for the last 5 or 6 years.
I am also shocked to see players like Zednik, Souray, Corson, and Turgeon get such low votes. This is obviously due to an age demographic, but jeez, these players were all very entertaining and talented players, as well as former fan favourites.
I would even say (as much as I like the guy), Gallagher being 6th is asinine. He's a decent player, but will be incredibly forgettable in two decades. I doubt he would have done so well if this poll had been done last summer either.