Rachel Reid is pushing back against negative comments about Heated Rivalry‘s latest season two casting. The author, who wrote the novels that the show is based upon, took to Instagram Friday to weigh into online debate about the casting of the characters Troy Barrett and Harris Drover in the upcoming season. It was announced Friday that Charlie Gillespie was cast as Troy, a professional hockey player who is traded to the Ottawa Centaurs in Reid’s source material, while Justice Smith was cast as Harris, the team’s social media manager. “Thinking about all the people last summer who told me the casting for Ilya and Shane was wrong and…