[Rally]

CHOP BLOCK
ARTICLE 3. A chop block is a high-low or low-high combination block by any two players against an opponent (not the ball carrier) anywhere on the field, with or without a delay between blocks; the “low” component is at the opponent’s thigh or below. (A.R. 9-1-10-I-IV). It is not a foul if the blockers’ opponent initiates the contact. (A.R. 9-1-10-V)
(FR-28, 2013 and 2014 NCAA Rules and Interpretations.)

This is the official rule.  Comments?

It is what it is.  The language is clear and the call was correct.  Damnit.

[Rally]

CHOP BLOCK
ARTICLE 3. A chop block is a high-low or low-high combination block by any two players against an opponent (not the ball carrier) anywhere on the field, with or without a delay between blocks; the “low” component is at the opponent’s thigh or below. (A.R. 9-1-10-I-IV). It is not a foul if the blockers’ opponent initiates the contact. (A.R. 9-1-10-V)
(FR-28, 2013 and 2014 NCAA Rules and Interpretations.)

This is the official rule.  Comments?

It is what it is.  The language is clear and the call was correct.  Damnit.