It's about hiring talent that can drive customer value without concern for anything else and the business can eventually hire more experienced individuals to fix the mud mountain if there's market fit and continued need.

It is extremely easier to find more affordable talent that has come out of a boot camps knowing javascript but more specifically "react/nodejs" which lets them work both frontend and backend. They rarely know best practices, how to properly debug & troubleshoot a problem that isn't a Google search away, etc, but they will be hungry and work their butts off to ship their CRUD style features.