Don't you think that the time missed is a contributing factor though? While it's not like we're just talking about a hot week and I do think that Seager is a great ballplayer I also think that his wRC+ would probably be a bit lower if he had 150-200 more PAs this season
Oh it does play a role. Even if he does get 150-200 more PA and sees his wRC+ drop by, say, 30 points... a 157 wRC+ is still amazing for a shortstop.
He does have a .369 BABIP, which is a career high. He's had .350+ BABIPs before, but you do have to go back to 2016-17. It's not like he's significantly outperforming his Statcast metrics (.347 BA vs .332 xBA; .659 SLG vs .652 xSLG; .444 wOBA vs .441 xwOBA)