But the pick, registered by former general manager Jay Feaster, was always deemed to be a long-term project.
That long-term project is now starting to bear fruit.
And Monday was the first example of that from the 22-year-old.
"I thought he looked a little nervous at first and then he settled in and there were a couple real nice subtle plays that he made … pucks coming off the wall and won a big draw against John Tavares there at the end when they threw out the hounds after the icing," Flames coach Glen Gulutzan critiqued. "I thought he did a good job."
Jankowski's self-assessment mirrored Gulutzan's.
"I think it was definitely difficult at the start, especially the first few shifts," said Jankowski, who embarked on his pro career after signing an entry-level contract with the Flames last April.
"It was a little bit surreal, all the build-up and everything. After that, I feel like I did a pretty good job of putting that all in the back of my mind and just taking it like another game.
"It was okay. I definitely don't think I played my best game, but I don't think I played my worst game, either. There are a lot of things I can improve on. It was a good evaluation."
Jankowski netted three goals and 12 points in 13 games with Stockton to earn the call-up.
He sat patiently as a scratch for two games before getting the nod to play his first.
And when he did, Jankowski was a quick study.
"Just the level of play … it's the National Hockey League," Jankowski said. "It's the best league in the world. It's definitely a lot faster … a step up for sure from the AHL.
"I think that's the biggest thing."
The next-biggest thing will be for Jankowski to net Game No. 2.
That too will be worth the much-shorter wait.