By no means am I coaching material but I would never pull a goalie down by 1 with over 2 min left playing Dallas.
It may have been a quick pull, but the reasoning likely was that if you put a team like Edmonton with the big guns on the ice on a power play for over 2 minutes, there is a good chance that they score and tie the game. But there is also a good chance that if the PP isn't as crisp as overcooked toast, that you give up the empty net goal. It's a roll of the dice. Whenever you pull a goalie in that situation you hope for the best, but also know that it's a risk.
The baseball analogy would be, in a tie game or up by one with 2 outs, intentionally walking the right handed hitter so that your lefthanded reliever can face the lefthanded batter who comes up next for the final out. You hope that the matchup goes in your favor, but if the lefty hitter lines a double down the line, or worse yet homers, you lose the game or go to extra innings. It's a dice roll and occasionally the move will backfire, and lose the game.
This discussion of coaching/managerial decisions backfiring for some reason reminds me of former NY Mets manager Mickey Calloway, who managed the Mets 2018-2019 and was later banned by MLB for sexually harassing MLB employees. As a regular listener of WFAN sports talk radio in NYC, I never heard a manager in ANY sport who did a worse job of handling the second guessing that went along with the job of managing a sports team in NYC. His contract required him to do a weekly interview (usually around 20-30 minutes) with WFAN. I recall he had a remarkable string of decisions that backfired on him badly. In NYC when this happens the media lose confidence in you very fast, and become very, very aggressive with their questions in the pressers. Calloway did the most comical thing, he would just spout euphemistic cliches like "I believe in my players", "we are going to turn this around", "the tide will turn", etc. etc., and never answer any questions. He was eventually fired for underachievement.