It's not whether you kick or not, it's when you kick and why you kick which makes the difference. The right kick at the right time will generally work regardless of the era.
Barnes is one of many Wallabies and Waratahs who have engaged in aimless kicking during the Hickey/Foley/Deans era. For coaches to say "it's not in the game plan", then pick the player again only to watch him do the same thing borders on the absurd.
What it illustrates is that the coaching hasn't been up to the job.
I've always thought that Barnes was a skillful player and seems a genuinely nice bloke. He strikes me as a loyal person who is true to his word. Based on that he'll go about any negotiations and requests in the right way. He's a professional sportsman, so subject to contracts etc, he's free to go where he likes and good luck to him and his family.