This is kind of the point. Built in interfaces require tuning to fit a given situation. And the alternative is a starter/scaffold generated on demand and then

This is kind of the point. Built in interfaces require tuning to fit a given situation. And the alternative is a starter/scaffold generated on demand and then extended, or just a fully custom built solution (which, if one’s design is good and the framework is good, is low effort). As with all frameworks, the freebies usually have less value in real world situations than we imagine they would. So choosing a framework based on the freebies is extra risky.