That's the real split in this series right now: one team scrapping for October, the other playing out the string under a first-year manager trying to keep a lost season from feeling like one. San Francisco had split the first 2 games of this set with Arizona, so the shape of the whole week was still very much alive walking into Game 1 of Saturday's doubleheader.
Nootbaar's slam did the heavy lifting, but a grand slam by definition means the bases were already full — Arizona had traffic on well before the ball left the yard, and once it did, the Diamondbacks tacked on 3 more across the 8th and 9th to make sure nobody mistook this for a fluke. It's the exact kind of late outburst a club fighting for a wild-card spot wants to see from a lineup that had otherwise been shut out for six straight innings.
Wilkinson's final line — 6 innings, 3 hits, 2 earned runs — is still a perfectly respectable data point for a pitcher with one MLB look and a below-average fastball, and it's a reasonable bet San Francisco leans on him again soon given the state of that rotation. But respectable isn't the same as a finished product, and the gap between his stuff and a lineup like Arizona's showed up the moment the game slowed down and the Diamondbacks started seeing him a second and third time through.
Arizona banks the win and stays in the thick of the wild-card chase with an off-day now attached if it can finish the sweep. San Francisco, meanwhile, keeps building a book on Wilkinson and the rest of its young arms while the record does what it's going to do. Ketel Marte is still a couple days from rejoining that Diamondbacks lineup, which makes Saturday's late-inning pop from the group already on the field an even better sign than the final score alone suggests.