The push is fast. Telling people to wait for propagation is incorrect. Also, this isn’t a “nonspecialist misunderstanding”. Very technical people screw this up all of the time.

> This latter behaviour is where the term really comes from, the cache-expiry part that causes longer wait times for changes to be globally effective is just kinda grandfathered in under the DNS vernacular “propagate”.

Nice job repeating the article. Everything you said is called out in the article but with useful details so people can learn to not think updating A records requires “propagation delay” to start working.