[HTML1] A Marine Reserve officer is taking some heat for an opinion piece he wrote analyzing the reaction to a viral video in which Marines filmed themselves belting out the lyrics to the girl-power anthem, “Let It Go.” In a piece for The Daily Beast titled “Why these Marines love ‘Frozen’ and why it matters,” Aaron B. O’Connell — a lieutenant colonel in the Reserve and history professor at the U.S. Naval Academy — said the public’s reaction to the video is flawed. Those who were calling it “adorable” missed the point, he wrote. Instead, he says the Marines’ performance is…