My 2cents …

Serverless computing removes you from having to provision a server yourself; you simply write functions, and the resources you need are automatically allocated to that function.

There is always a BUT:

… new applications are a good fit for serverless computing, old applications often are not—and migrating those old applications to serverless could be more work than enterprises bargained for …

Even if the languages are supported, it takes a huge effort to refactor an application to properly take advantage of serverless computing.

Quelle: Serverless computing: Don’t make the wrong choices | InfoWorld

To this day, we remain captive of the infrastructure IT stack we have so painstakingly built over the last couple of decades in which applications were designed to conform to the infrastructure and not the other way around. …

Clearly, the infrastructure we have today is not going to carry us into the next couple of decades once we have billions of devices sending petabytes of data that need to be analyzed and acted upon in real-time or close thereof.

What we need is a fundamentally new infrastructure stack that is application first and lets the developer focus on delivering business value.

Quelle: Server-less eats the infrastructure – Hacker Noon