Not all infrastructure configuration options are relevant to every use-case. By focusing on specific use-cases, you can hide "irrelevant" config options. This is a fact.
The full statement from the source material says bloated cloud infrastructure "configurations", referring to verbose configuration files. Needlessly critical? It depends on your experience with these.
These, serverless, cloud, and more are abstractions. Fortunately, if the abstraction doesn't fit your needs, you aren't forced to use them.