Just in terms of basic counting stats, Sabonis' two all-star seasons he averaged:
18.5 ppg, 12.4 rpg, and 5 apg
20.3 ppg, 12 rpg, and 6.4 apg
This season he's averaging
18 ppg, 12 rpg, and 6.7 apg
while playing a couple less minutes per game.
But as Capt noted, pretty much every advanced stat shows he's playing the best, most efficient basketball of his career right now.
And he's doing it as the hub of the teams offense AND defense. If anything the Kings are struggling to adequately cover for the minutes he's on the bench because he's so integral to what they do. Best of all, he's been trending better than his season averages the last couple weeks.
I could understand the idea of wanting Sabonis to score more if the Kings needed that, but they're the second highest scoring offense in the NBA right now.