You've still created a defacto framework there by stating that your applications are built by integrating libraries a, b, and c in a particular way. You're also

You've still created a defacto framework there by stating that your applications are built by integrating libraries a, b, and c in a particular way. You're also left actually maintaining that integration, and managing the entire stack for all applications using it. Maybe that's a win for you and the extra flexibility is worth the effort, but that's probably not the case for most organisations.