I gotta think this way of thinking is somewhat archaic anymore. With the advancements in manufacturing, tolerances, CAD, etc., you just don't see major issues with first-model-year vehicles anymore. Even though the sheet metal (aluminum) looks new, the underlying tech is basically the same with minor changes. Sure, issues happen, but I'm not convinced it's due to the curse of the first model year. Shit just happens sometimes.
Technically the 2020 SD had a new engine and transmission, but there are very few issues. 2021 didn't see any mechanical changes either, so is it still effectively a first-model-year still?