what's wrong with this case ruling

[wanja]

NFHS 2.10.1 SITUATION E:

A1 has been given the ball for a throw-in after which A2 commits a foul against B2. B1 is awarded the ball for a throw-in and commits a throw-in violation by touching a foot inbounds before releasing the throw-in pass. The ball is at A1'S disposal for the subsequent throw-in when the officials are informed that A2's foul was team A's seventh foul. RULING: The clock had not started and the error is discovered within the correctable error time frame. B2 is awarded the bonus with no players along the lane lines. The point of interruption is the throw-in for team A (2-10-1aq, 2-20-6).