“Why this matters” being the final section is a guaranteed give away, among innumerable others.

I realized once I was in the "optimizations that dont need rust" section. Specifically "This is concurrency, not language magic."

Yup. The author has now swapped that part out for “Any language can do this.”

Just commenting to preempt any comments telling you that the article doesn’t say this.

I used to rely on this, and still mostly do - but you’d be surprised how quickly this has entered the normal vernacular! I hear people using it in conversation unprompted all the time.