Asked whether officiating had helped dictate the the result, Julien said: "More than that it was us. We didn’t play a very god game from the get go."
Just looking at the stats in the loss, which saw the B's out-shot 27-20 and out-hit 36-15, it was clear from the drop of the puck that it wasn't the Bruins night.
"They got some early goals and before we settled down a little bit and came out better in the third," said Julien. "But the damage was done.
"From the first to the last period tonight, I don’t think we had a very strong game.
"So its unfortunate, but again those are things that will help us get better in the upcoming game and we understand that we have to bounce back," he said.
Even before the game, Julien had said that given the B's play (21-3-1 since October) and their status as the defending Stanley Cup champions, Boston should expect their opponents' best game each and every night.
"We have to realize teams are ready to play us," said Julien. "When we’re not ready, those kinds of games will happen to us."
Lucic's third period goal gave the B's a positive to point to as the team prepares for their tilt with New Jersey on January 4.
"We had to decide whether we wanted to be frustrated or determined. And our guys responded well and showed them we were determined," said Julien. "We got that early goal and showed we were a better team, but it was a frustrating night for everybody.
"When you’re battling a little bit, and you feel like there’s some tough calls against you, it can get more frustrating. But at least we came out in the third and instead of making things worse, we made it a little better.
"And we hopefully had a bit of grit out of our team that will make us a better team and get us a better start next game," he said.
New Jersey (21-15-1, 7-3-0 in their last 10) will be ready and waiting for the B's (24-10-1, 7-3-0) on Thursday.
"We have to be prepared and be ready to play better than that," said Julien, who added, "lesson learned tonight."