> We, ngrok, have sponsored Mac to write this post because we think it’s an underexplored perspective on the topic of reliability.

Uh, okay. Were there any reliability perspectives gained from this 30-year-old postmortem that would help us in the modern age? After reading the article, I feel the answer is "none". Not that I'm complaining I love this era of the internet. But I fail to see any importance here.