Fiala is the highest-paid forward - and since Doughty hasn't played all season - the highest-paid player on the team.
He gets the most powerplay time of any player. He also has the second-highest offensive zone faceoff % of all forwards (1st is Jeannot).
Dude gets the most favorable circumstances both 5-on-5 and on the powerplay. Yet he has the worst plus-minus, fourth in team-scoring, and among the worst even-strength players on the team.
He's talented but limited, and for the highest paid player and favorable circumstances, he absolutely deserves the criticism he's getting if not more. Kopitar went through years of being criticized more despite producing more in less favorable circumstances.
It's hilarious that the best defense people have for Fiala is "you're just being a hater" or "player x is worse."