Montreal coaches don't taunt or call out other organizations when they lose. I've seen some players being referenced, but not an organization such as it would be by essentially saying that a whole team's full of divers or embellishing players.
When Montreal would win a game in past seasons, Subban & Price would perform a "low-five" gesture 3x. This has since been banned by the team as it was deemed to be classless and a sign of disrespect to the other team.
Yes, Bruins players embellish too. Seguin's reaction to the slight check in mid-ice looked as if Seguin had been shot. There's also a nice video of Thornton embellishing too. Most players do it to an extent. For example, if the puck carrier feels an opponent's stick on his side, a move that is used very very often is to close down the elbow so the stick is trapped, thus potentially getting that player a hooking penalty. That happens about a dozen times in any NHL game.
Painting the Bruins as being collectively full of honest individuals who play with integrity is a laughable thing to read. A majority of the players on that team are known throughout the league for playing dirty, taking cheapshots, etc. They are a tough team to play against, if only because of that. Then, you factor in the balanced level of skills they have on their first 3 lines, along with Hamilton & Chara and you essentially get a very very tough opponent.