It was a minuscule, unsustainable sample. 13 HR out 31 fly balls in those 173 PA.
He struck out 74 times, walked 17 more and got plunked six times, so he only had 76 total batted balls to begin with.
Aaron Judge has a 32.5 career HR/FB%, anybody who posts anything over that for a stretch should be counted on to regress heavily, just as Keston did to close out 2022.
Hiura’s career HR/FB% is 23.1. Seriously, all this internet ink spilled over a couple wall scrapers in a 31 fly ball sample.