You don't find it misleading because you already know what an OTP Supervisor's role is limited to, and you know that Kubernetes (among a thousand other things) also provides that one feature. But its not a good analogy since it can only be understood by someone who doesn't need it to be explained.

Interesting, thanks for the feedback. I find it misleading because Kubernetes is a massive platform that does all manner of things besides just supervising your Pods, and in fact I had to think about it for a while before concluding that the supervisory function is likely what the author was alluding to.

It strikes me as saying that an oxygen mask in a hospital room is like an airplane: sure they both provide a facility for providing oxygen to the user, but the airplane is significantly more complex than simply an oxygen delivery system. Probably a terrible analogy, just thinking off the top of my head.