Blocking with kickoff < 10 yards

[whaddayouknow]

NFHS: On a kick-off, the kick was bouncing on the ground. After the ball bounced about 9 yards, K blocked R to keep them away from the ball. After the ball bounced 11 yards, it was untouched and K recovered.

We ruled K's ball with no foul. I haven't research it yet to find if we were correct or not, but it just doesn't "seem" right that K blocked R from the ball.

Thoughts?