No, it's because they have 5 shortstops behind him!
1. Xander the amazing
2. Tatis the guy who was to be moved off SS for a long time (negative DRS/negative OAA at SS)
3. Machado now Odor(-36 DRS at 2B)
4. Kim an actual defender
5. Cronenworth?
Yes, there is considerable luck involved AND Petco's run suppression. Seth Lugo is a similar pitcher, why aren't those same defenders helping him as much?