You've heard of the Unix philosophy? Small programs that do one thing well. Composeability, so you can combine programs to make new functionality.

Rather than build one console app that has 50 features, you build 10 console apps with 10 features each. The complexity of each component stays small while your capabilities as a user grow and grow.

This worked originally as the Unix designers were free to organize their code however made sense according to their philosophy. But Conway's Law comes into play in organizations, where there is always a hierarchy centred around one or two main products. Rather than one or two people making 10 different apps, it's multiple teams making a couple apps each. They don't communicate between each other well or understand the other components, and it all has to fit inside one program.