You are somewhat correct about the pitches but you’re missing the biggest aspect in my opinion. A closer needs to live and breathe pressure. Houck fits that PERFECTLY. He never ever looks stressed, or angry like so many other pitchers. Very few can come into the 9th and get a save. Houck treats the 9th like any other inning and it shows. The guy barely breaks a sweat. It was 6-5 and he had one of the best hitters in the league come up, and he struck him out
Houck is our closer. Did he make things tense? Sure. But guess what. Kimbrel did at the best of times for us as well, same with many other closers. The best closers can have off nights. I am perfectly fine with Houck being out closer. The guy fits the position perfectly.