Umpire Scorecards agrees with you that the Ump - Tripp Gibson - was quite good on ball and strike calls.
of 109 pitches that were called as balls, there were 5 that should have been called strikes
of 46 pitches that were called strikes, there were 2 that should have been called balls
so 148 of 155 pitches taken were called correctly - a 95% accuracy rate which is better than the 'average' umpire. based on 'run expectancy,' the missed calls slightly favored the Padres.
interestingly, all of the "missed" pitches were near the top of the strike zone.
Wow. Glad I'm not an umpire. A lot of accountability for a very difficult job.