Kamala Harris’s first big policy speech did not exactly draw rave reviews from a media establishment that largely seems to adore her.But with the Democratic convention getting under way, does that matter?Perhaps the most stinging criticism came from the Washington Post’s mostly liberal editorial board, which declared that “unfortunately, instead of delivering a substantial plan, she squandered the moment on populist gimmicks.“That may well be true. But again, does it really matter?KAMALA HARRIS, TIME COVER GIRL: IS HER SURGE AGAINST TRUMP FUELED BY AN ENDLESS MEDIA HONEYMOON?Policy is crucially important as voters weigh how the candidates would govern for the next four years. It’s especially vital because Harris suddenly emerged as the substitute nominee in a three-month campaign – not a “coup,” as Donald Trump says – when Joe Biden was pressured int …