No I don't. However, I do think the refs try, subconsciously or otherwise, to limit their effect on the game. The Penguin's PP was damn near automatic, winning them games early on, so it isn't far fetched to believe that the refs have tried to limit the penalties called to try to make games more competitive. Again, it doesn't have to be a conscious decision, but they are human and for the sake of "fairness" they may change what is a penalty to fit the particular game. It's really just inconsistency and human error.
An example would be last night. The Canes were angry about the Pen's first goal call because Sid was in the crease impeding Ward from sliding over to try and make a save. I think that's a 50/50 call either way but it went the Pen's way. So the refs then called a ticky tacky goalie interference penalty against Sid in the 3rd to make up for it. Then the Pen's get two other penalties (deserved) but the Canes can drape over Geno's back in the neutral zone and no call.
By trying to make the games fair, they end up hurting the games in the long run. Additionally, I do think there is often a bias against star players. The first 5 times Malkin or Crosby skate through 3 guys and get hauled down, it's a penalty. Then the rules change because you can't keep calling penalties against the same players. Well, you can and you should, but that's not the way it works.