I'm not saying MVC is the only way. I've not even mentioned MVC. What I gather though is that when you hear someone mention frameworks you assume they are referring to the railish frameworks of recent. A framework to me is a set of libraries and a structure to better layout and facilitate the development of your application.

It also doesn't have to be a premade/3rd party one as you've demonstrated by essentially creating your own framework and just calling it by a different name(collection of libraries).

A recipe for disaster in my opinion would be a large project with no code structure/layout guidelines.