Comment by jiriknesl

Well, I guess you are speaking about companies who don't know what they do. But this article speaks about banks, who have hundreds of servers, ability to recover anything, full-time employed ops teams, monitoring & automation in place for 20 years already. Moving to cloud provides very little advantage (definitely not financially) to such companies. They are not SaaS who might need to double their infrastructure overnight. Lots of advantages provided by cloud has been in place years before clouds because of VMWare. Another thing is existing bank apps are often monoliths (when you are happy, in Java with Spring, C# .NET, when not, in Visual Basic, Cobol, PowerBuilder, SAP) or huge interconnected services, huge databases with thousands of stored procedures, SOAP APIs in place. This is not a place where you would leverage ElasticBeanstalk or AWS Lambda.