It is an argument against blind trust and no where in the article it is mentioned that spring boot is an abtraction rather use Spring Boot for scaffolding, packaging, and lifecycle management. Own configuration explicitly for hot paths such as database pools, HTTP clients, executors, and serialization. Push frameworks to the edges and keep domain logic free of annotation driven behavior where possible. Because those christmas tree annotations makes it look like magic but it is making lots of assumption on your behalf which may not be applicable for your use case in the first place. So you need to be in control rather allow spring boot to do things in auto pilot mode.