Decided I'd watch the, what youtube is calling "highlights":
-1st Goal, scored before Calgary even had a shot on goal, 3 edmonton players between Markstrom and the last Calgary defender;
-2nd Goal, 2-1, as per typical Calgary fashion, we take neither the pass or player;
3rd Goal, About 3 Flames players screen Markstrom, and possibly tipped it, into their own goal;
4th Goal, A bouncing, tipped shot, ok, fair enough;
5th Goal, Dman gave the puck right to the Edmonton forward, resulting in a one-on-one with an empty net.
Sounds like it was pretty even hockey when the Flames had the 5-3.