Even as the winds gusted dangerously as forecast, California’s biggest utility faced hostility and second-guessing Thursday for shutting off electricity to millions of people to prevent its equipment from sparking wildfires. Gov. Gavin Newsom criticized Pacific Gas & Electric and ordinary customers complained about the inconveniences caused by the unprecedented blackouts that began Wednesday, with many wondering: Did PG&E go too far in its attempt to ward off more deadly fires? Could the utility have been more targeted in deciding whose electricity was turned off and when?