Ok, if those are the rules, then i agree that points should not have had been deducted. Thanks for the enlightenment on the matter.
However, i do feel that Varner knew Melvin was hiting the ground with his head in a brutal way and i feel that due to the danger of a serious injury, that should be taken into account when evaluating/preventing this kind of situations.
Varner likely knew Guilliard was gonna hit the ground in a bad way but by that token its Melvin's responsibility to defend and protect himself. Melvin put himself in a risky position in order to try and obtain a more advantageous position. Your suggesting that Varner should allow Guilliard to get that position because defending it would either force Melvin to release the position or take a dangerous impact.