After 17 g4, the black queen bishop was driven back.
Now the evil consequence of exchanging off the black queen bishop at move 22 made itself felt.
Shulman is not going to allow the exchange of his king knight for the black queen bishop.
After 11 d5, the black queen bishop was out of a job.
Later, his blocked-off queen bishop could not help out with the defense of the king.
This opening takes a radical approach to the problem by bringing out the queen bishop immediately.
After 13 a4, it would have been desirable for Radjabov to develop his queen bishop to e6.
This committed him to the development of his queen bishop to a fianchetto with 11 Bb7.
One such challenge was 8 h3, preventing the exchange of the black queen bishop for a knight.
The point did not emerge until 25 Bb7 revealed how ineffective the black queen bishop had been throughout the game.