This CF comment sums up the situation right:

If you don't think it is Odd that Lin decided to take the day off instead of finishing the practice with rest of the guys, you are not thinking.
You are the starting PG on a team that just landed a superstar CENTER who needs you to pass him the ball, shouldn't you milk every opportunity to work with him to build some chemistry? Especially with another PG on your team may take your starting position?