Eh, its not even about that. In this day and age of over analyzing everything the picture has the potential to turn into a distracting issue for the team. Of course in a vacum, Russ getting his groove on doesn't necessarily have a negative impact on his play, but if this blows up in the media it becomes an off the court issue he and the team suddenly have to answer questions about. Is it fair? NO, but it is a reality of today's society.
When Eugene Robinson was getting hookers before the Super Bowl I doubt it would've affected his play, but the media firestorm it created? If nothing else its another distraction you have to deal with.
With that said, this picture could have been from two years ago for all I know.