There are plenty of reasons not to like the opener. If you don’t want the Giants or any other team to use the opener, I totally get it.
For the aesthetes out there, the opener removes the battle between starters. When I was a kid, I would count out games to find when Shawn Estes or Russ Ortiz or Jason Schmidt was pitching because they were my guys. I’m sure there other kids counting out when Tom Glavine or Kevin Brown started because they were that other kids guys.