Oh, I love a good throwback. It's just that this looks so hastily thrown together, and most WC jerseys take an original crest from a team's heyday and modernize it just a little. The pic SFiC provided makes it look like they just copied it exactly the way it looked nearly 100 years ago.
Another thing that I think isn't working for me are the white numbers/letters. White's only been a negative space color for the Bruins throughout their history, so seeing it so prominent on a black jersey just adds to the practice jersey look to me.
Now, to be fair, I might have a different opinion once they're over pads and in a game. For now, though, I prefer the 2010 jersey's to these.