Here’s an interesting explanation of the “Eternal Struggle” between Technical Debt and Backward Compatibility (in a WordPress context) from WP CLI maintainer, Alain Schlesser.
Alain Schlesser
Alain Schelsser is at the time of writing the paid maintainer of WP CLI, and important Command Line Interface for WordPress. If I post something by, about or featuring Alain, it will be found below.