Article states:

MyDNS simply reads the records from the database, an

when DNS records change or zones are created/edited/deleted! This is a major advantage.

Only old BIND deployments would run this way. BIND has supported dynamic updates for quite some time. Mine never goes down (well practically speaking). All of our changes to the BIND DATABASE are made dynamically.

I emphasize database, because BIND is a database... whether you want to look at that way or not. I'm not against a DNS sitting on top of a database of some other kind, but I certainly don't like tools where the data is replicated out of a sql database and into BIND... just speaking out loud. Again, serving up out of a sql database is fine... just want to point out that BIND has/is a database and you don't have to restart it to make record changes or additions (with a few exceptions.. but not 99% of what would be changed normally).