Um, I did say "Yes, Nestor is younger." Maybe your reading comprehension skills need more work.
What makes Nestor's ERA+ 103, now, is a tiny sample size similar to the one you blasted me for using with Pivetta's recent 3 game stretch. (BTW, I also referenced Pivetta's 2021 season and his full time with the Sox, 100 ERA+ in 192 IP, which is about the same IP'd and ER+ as Nestor has, career 103 in 202 IP.)