You are partially right. It is completely possible to write in JS/Mongo systems as robust as Ada/Oracle|DB2|SQL Server. You just have to know what you are doing. There is no magic in Ada, Oracle, etc.
Node and Mongo are moving hundreds of billions daily in HFS shops.
There is no magic but there are strong constraints that shift reliance for correctness from fallible human programmers and peripheral tools to the type system and compiler, providing better integrated, systematic assurance.
Node and Mongo are moving hundreds of billions daily in HFS shops.