You know what stat matters most here? How many games have the Kings won without Cousins the last two seasons?
^^ This is the end game argument and most relevant factor.
Those that don't see this team play a lot - and even misguided fans that do - point at the win total as proof that Cousins impact isn't all that great.
What those people fail to acknowledge is that this team is so bad that they really don't have much of a chance to win games when Cuz doesn't play.
They were 6-16 this year. Two of the wins just occurred against a Lakers team essentially fielding a D-league roster. Take those gimme throw away games away and they were 4-16.
They were 0-11 last season.
That's 4-27 (.129) the past 2 years under the "new" ownership and front office. Conversely, they've gone 51-80 (.389) in games he did play. Not great, but neither is the roster that surrounds him. Regardless, it is a fairly noticeable difference.
You could switch Cousins out with any other player in the league -- provided the same circumstances that unfolded this season (meningitis, coaching carousel, injury to Collison, etc.) -- and it's doubtful that they would have fared much better, if any.
When the Kings fielded their best talent, they won games despite an extremely subpar bench. When Cuz played but didn't have competent support around him (Gay and/or Collison) they were generally competitive even against really good teams. When Cuz didn't play, they rarely won a game.