Your logic is so flawed. Not every player takes the same path into the NHL, so there is no reason to compare with unlikely counterparts. Jake has taken strides in his defensive game, which is far important to his success at this time of his career.
Also, do you have any idea how he was treated this year in Calgary? I would be interested to hear if you actually know anything about his last season, other than pulling up his HockeyDB page.
If he can continue playing a gritty, fast, hard back checking game, he will see himself in the NHL very soon.
Horvat scored 5 points in his first 19 games, 3 of those were assists in one game, all while having an impact on the game regardless of scoring. We are lucky to have coaches that are willing to develop our players from the roots up.