Here is a quote from the article by Geist..
4) Since trophy hunting and management is centuries old, why was it never mentioned that reversing selection for large horns or antlers restored trophy size? Loss of hereditary potential through hunting was long recognized as well as the antidote: reintroduce the missing factors, the missing genes, from adjacent populations – or merely wait and let normal dispersal do it for you. Why is such not mentioned in the mew media?
Geist clearly states that hunting can result in the loss of hereditary potential, but that it can be reversed by reintroducing the missing genes.