Don't you think the oddsmakers had some idea Kidd wouldn't play tonight when they opened the line at 5? I could be wrong this time, but typically they know everything there is to know about the stars in this league. If Kidd was suffering from a bad case of blue balls last night, I'm sure they would get the word. All I'm saying is, don't overreact to the injury and the 4 point line move.
Good luck!