San Francisco 49ers head coach Kyle Shanahan has taken a lot of flak online since his team’s Super Bowl loss to the Kansas City Chiefs in Las Vegas on Sunday. Many have second-guessed the coach’s decision to take the ball first in overtime, blaming that move for the 49ers’ 25-22 defeat. After the game, Shanahan explained his rationale, telling reporters that if both teams scored on their drives and one team had a chance at a third possession, he wanted it to be his. Kyle Shanahan detailed why the 49ers took the ball after winning the coin toss in overtime. “We wanted the ball third. If both te…