I don't know if there is an official name, but in my head I call it "helpers/components/mixins are better than frameworks." Or, "if one happens to want to write a framework, one ought to try hard to refactor it 'inside-out' to a set of composable components."

The most important (though not only) issue with frameworks is that you typically can't compose/mix more than one together - every framework is "exclusive" and takes control of the code flow. Whereas "components" can usually be easily mixed with each other, and leave control of the code flow to the programmer.