He has a 1.13 HR/9 in his major league career and it's trending in the wrong direction (0.96, 1.07, 1.22 from 2022 to 2024). From 2022 to 2025 the HR/9 rates are 1.09, 1.23, 1.14, 1.14, so over that whole stretch he's basically completely average and he's trending towards being worse than average.
What he has done is maintain a LOB% of over 80% every year, where the league average is between 71.9% and 72.6%. The only thing I've been able to find about pitchers outperforming a normal LOB% is that high strikeout pitchers can sometimes do it, but he's been below average there as well. From there it becomes a little more theoretical. Does he buckle down and try harder with guys on? Does he pitch unusually well from the stretch? If either of those are the case, why doesn't he just do that all the time? Or...have the baserunners he's given up been beneficially spaced out to avoid runners crossing the plate in a way that is almost certainly out of his hands and not something you'd want to rely on continuing going forward? I lean towards the latter.