You don't want to overreact to it, but it's a reminder of something very impressive: in his rookie (age 19-20) season, a very smart basketball coach entrusted Jayson Tatum to play big minutes on a really good basketball team.
I actually think we are at risk of underselling both him and Jaylen. Those two are almost tailor-made for NBA defense in terms of their physical traits -- big, nimble, long arms, switch everything -- to go along with a polished offensive game for two players of that age, plus very strong work ethics. The expectation should be for both players to make more than one all-star game in their respective careers.