As a non Googler myself, it still is if you want to know how to set up an SRE team and introduce SRE (ie good sysadmin, for lack of a better word) best practices. The focus on actual indicators such as SLI and SLO, the importance of reducing "toil" (boring repetitive tasks) and automating,... these are all valid concerns.

If you want more about system design and how to design reliability, I suggest reading https://google.github.io/building-secure-and-reliable-system...