The article itself discusses inferring Amazon's priorities from changes to their s-team, including doubling the number of AWS s-team members.
I'm not sure I'm allowed to disclose which events/meetings their s-team regularly attends. I will say that I did have several opportunities to interact with them directly in meetings, and indirectly via goals setting and annual planning exercises.
Peter Desantis is a long time AWS guy, and was present at many of those same meetings/exercises. Peter, and other s-team members, talk about what it means to be AWS. That they've chosen to make him an s-team leader says to me that they like the culture the s-team is cultivating, and want to continue to grow it.
But priorities is not the same as culture! This is such a broad and vague connection. The "priorities" in the article are all about different markets (fashion, Alexa, AWS, etc.).
And even then, you say they drive all this culture, but you don't say anything substantive. How? What events?