Not sure how much I agree. Micro services in rust are pretty nifty. You don't have the child start issues and can run with less compute and memory. As an example.

At scale it can mean a lot as well... If you're running on thousands of servers, it can definitely be worth it for the ongoing savings in expenses.

And I'm a guy that pushed JS/TS for many things well before the Good Parts book. I still think JS is a great language for ETL work.