Sure, but the reality is (and I want this to be better as much as anyone), he's only a 15-goal per season player.
He's a 15 goal per season player if he's being deployed incorrectly.
His rookie year he had 14 goals in 80 games while getting 12 mins of ice time playing with grinders on the 4th line. The following year he puts up 13 goals in 56 games again playing with grinders on the 4th line. Sure, they give him a little PP2 time but for the first 2 years he's deployed in a role at 5 on 5 that he's clearly not suited for (yet still performs relatively well tbh).
Edit: For added context, Kaliyev is also 20 years old the year he plays 80 games and 21 years old the year he plays 56 games. My point: He was crazy young (on top of being deployed incorrectly) when he was putting up ~15 goal seasons. There's more to this player than what we've seen to date.
Then at the start of last season they finallllllly seem ready to give him a shot in a top 9 role with linemates that can actually make plays to set him up to score at a decent rate and he actually performs pretty damn well to start.
Kaliyev had 7 points in his first 10 games last year - That's a very respectable 57 point pace over an 82 game season. Hell, he even had 12 points through his first 20 games if you want a larger sample size - that's still 50 point pace. Then the Kings start to shift things around and Arty starts to struggle a little bit and he's ultimately moved down to the 4th line, then starts to be scratched, then the rest is history.
If you ask me.... I'd say the Kings killed Kaliyev's confidence last year with the way they handled him.
You're welcome to disagree - But I reallllllllllly hope they give him another shot because I reallllllllly think the Kings have a pretty good player in Kaliyev if they just set him up for success (aka if they just put him on a line with hard-checking, high energy linemates and don't expect him to play a perfect defensive game). If you let Kaliyev play freely offensively, the offense will outweigh the defensive deficiencies.