Even if it was merely a polite formality, the fact that Holland is officially Garfield-approved is a sign of confidence in Spider-Man: Homecoming’s efficacy.
We’re assuming Andrew Garfield is talking about the domestic trailer when he gushes about Spider-Man: Homecoming.
But knowing Andrew Garfield and his straight shooting policy about discussing the Spider-Man franchise, you can tell that he’s sincerely excited to see what his successor does with his new spin on the same web.
However, he may have seen both and is just conflating them into one whole.