This is probably in respect to a few things. 1)There's no need to constantly update your version of the language and framework unlike with say Ruby and Ruby on

This is probably in respect to a few things. 1)There's no need to constantly update your version of the language and framework unlike with say Ruby and Ruby on Rails. 2) COBOL is battletested so most of the failure modes are well-known unlike with adapting the latest and greatest 3)I doubt that mainframes suffer from as many distributed computing problems