Kinnvall did more than turn heads in the Flames head offices - he legitimately made waves across Europe with a dominant third season in the Swedish Hockey League, making him one of the most highly sought-after players in the spring pool.
The 5-foot-11, right-shot rearguard scored 11 goals and had a team-leading 40 points with fifth-place HV71 last year. That ranked second among SHL defencemen, with first-place Kodie Curran - a longtime vet and former University of Calgary standout - more than eight years older.
Growing up, Kinnvall always considered himself an offensive dynamo. But, after scoring at roughly half that 40-point pace the year prior, the latest campaign represents the biggest leap in his career to date.
"I mean, it was crazy," he laughed. "Forty points as a D man? That's kind of cool.
"But, honestly? I think I can do even better next year.
"This year, when it started, it was a little up and down. The first three months were extremely difficult. I didn't get to play all that much and struggled to make my mark on the team. But after the Christmas break, everything turned upside-down. Everything started to click, both for me and the team, and I started to score points. My confidence was really high at that point, too, and everything was going so well. I had fun out there, played my best game.
"I did everything I had to do.
"There's no reason to think I can't build on that again next year."
And he'll get that chance.
Kinnvall's two-year pact begins in the 2021-22 season - meaning he'll spend the upcoming campaign in Sweden, honing his craft with HV71 for a second straight year.
While he's over-the-moon happy about his future with the Flames, he admittedly needs a bit of seasoning to prepare for the rigors of the NHL.
Then?
The sky's the limit.
"I had a really good role," Kinnvall said of his late-season rise. "I want to build on that - to really take my game to the next level. I need to be stronger and be better with my positional play in the defensive zone. That's what I'm looking to develop right now, and there's no better place to do that.
"If I can do that, really develop my all-around game with one more year over here, I know I'll be ready for the NHL at that point."
"I know I will."