Aphyr did the same "Call Me Maybe" posts for other databases as well, highlighting their shortcomings. MongoDB has issues, but other databases have their rough edges as well. It all depends on how you use them.

For a group of people that know nothing but hammers, screwdrivers don't make much sense. This feels often what these "bash Mongo" arguments sound like.

There is no silver bullet. Just flippin' understand the tool you are using and how to use it.