I disagree about this new design being "improved". I think it lacks the edginess that the previous design had, that made it fresh. It feels more corporate and stale. It feels safe.
I never really liked how they presented their design system. The previous version felt a bit too design-ish in the detriment of good UX, and probably that's why they changed it so quickly. This version feels like something you'd build with Google Sites and the typography is not that good imho as it doesn't drive your attention intuitively as you go down the website.
That sticker set is awesome.
This design looks more clean as compared to previous update. I like it and now it looks more alike other Google Site Pages. But I think Content is more important so it works.