Not every application will need MVCC/ACID eventually. As another commenter pointed out, you can always assert that RDBMS like features will always be needed an

Not every application will need MVCC/ACID eventually. As another commenter pointed out, you can always assert that RDBMS like features will always be needed and that NoSQL is considered "shiny thats why people choose it" but some people actually know what they're getting into and have made a reasonable informed decision on what kind of persistence their application will need and how to scale it.