23 seems awfully early to suggest as a defensive peak for players. According to this article, which uses Defensive Runs saved data, MLB players peak defensively around age 26. Bo obviously has quite a ways to go before reaching age 26, no reason to be so smug and definitively suggesting he is going to get worse instead of better.
https://sportsinfosolutionsblog.com/2020/05/08/a-closer-look-at-defensive-aging-curves/