One thing the fine article does not list as a reason to run your own DNS is if you need a secondary name server. There are plenty of options (Route 53, etc.) if you only need a primary, but all Internet domains should have at least two authoritative servers (for redundancy). There are far fewer secondary server options available from DNS providers, so it is often a good idea to run your own.

Perhaps of interest: https://github.com/octodns/octodns