Buffalo led 3-0 entering the third period. Travis Konecny scored a power-play goal 4:30 into the period to get Philadelphia on the board, Brayden Schenn scored with Kulikov in the box and Mark Streit tied the game with 1:51 remaining in regulation while Sam Reinhart served a penalty for high-sticking.
"We took those penalties because we turned over the puck," Bylsma said afterward. "We turned over the puck at the blue line that led to the Kulikov penalty and we turned the puck over at the other blue line and we took a penalty. Because of the turnovers, both of those were pucks that ended up in the back of our net.
"I don't want to dissect the penalties because I'm not sure I agree with all of them. But the reason why we took the penalties I do want to talk about, and that's the way we managed the puck."
The first two periods went entirely in Buffalo's favor, with Nilsson picking up right where he left off in his phenomenal preseason in the first period and the Sabres pouncing for three goals in the second. Tyler Ennis opened the scoring and Matt Moulson continued his hot start with two power-play goals. They even chased starting goalie Michal Neuvirth, who was replaced in net by Steve Mason.
Even after Konecny scored in the third, Bylsma said the team felt confident they would still put the game away. They ended up being outshot 19-5 in the period and 41-25 overall.
"This is something we should be so far past this right now," alternate captain Ryan O'Reilly said. "They didn't beat us, we beat ourselves. We had the game wrapped up, 3-0 going into the third with Anders playing a phenomenal game. We know we have to be much better and we need to take a good, hard look at ourselves and find a way to bounce back from this."
The players in the dressing room shared their coach's sentiment in being more upset with the turnovers that led to the penalties in the third period than with the penalties themselves, stressing their inability to get the puck deep in the zone as a reason for their falling behind.
The other prevailing sentiment among the team's veterans was that there is no other way to deal with a disappointing loss of this nature other than to use it as a learning tool for a team still figuring out how to close out games.
"We have to learn how to win in the third when we have a lead and that's get pucks out, get pucks in and continue to forecheck," Moulson said. "All you can do is you have to learn from it and learn what it takes to win. Our coaching staff preaches it; we know what we have to do. We just have to execute."