While the Flames piled up the shots, many were from the outside, giving Campbell an easier night than he could have had.
It was the talking point in the dressing room afterwards, with the players feeling there was more they could done with their lopsided zone time.
"We just didn't get to their net," captain Mark Giordano said. "It was one of those nights.
"We knew they were going to come in and play a really structured game defensively, and that's what they did. They really pack it in and it was hard to get inside them. We had a lot of shots, but we didn't have enough second and third opportunities. They did a good job sealing off and boxing out in front of the net."
The Flames finished with more than 70% (63-25) of the even-strength shot attempts, 64% (25-14) of the scoring chances, and a commanding 72% (8-3) of the high-danger opportunities.
And yet, they couldn't help but lament 'what could have been.'
"They didn't give us much," offered Matthew Tkachuk, who got in a spirited shoving match with LA defenceman Drew Doughty early in the third period. "A lot of shots, but not a ton of great chances.
"I think that really buckled down in front of Campbell."
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The visitors drew first blood in the opening minute of the game, as Forbort sailed a long shot from the left point through a crowd, beating Smith on the glove side after his eyes were taken away by the 6-foot-3 Jeff Carter in front.
With under three to play - after trading barbs and having his twig chopped down during a physical board battle - former King Oscar Fantenberg dropped the mitts with Tyler Toffoli. Fantenberg landed a few late shots and earned the decision over his prior mate.
Before the period was out, back-to-back penalties by Garnet Hathaway and James Neal put the Kings on an extended 5-on-3 that carried over into the second. But the fresh ice did the visitors no favours and the 1:41-long 5-on-3 passed without the penalty killers breaking a sweat.
The Flames came oh-so close to levelling the score soon after, but after the rebound from a Travis Hamonic point shot sat precariously on the near post, giving the eagle-eyed Matthew Tkachuk a chance at the nudge-in, defensive ace Anze Kopitar tied up the stick of the Flames' alternate captain and swept the puck to safety, despite the goal light going off in the background.
Kopitar then turned it back on offence and the recipient of an excellent saucer feed Alex Iafallo on a 2-on-1 late in the period, but Smith came up a massive body save to preserve the slim deficit.