I think it's "this is the way things are done in order to achieve X". Where people don't question neither whether this is the only way to achieve X, nor whether they do really care about X in the first place.

It seems common with regard to dependency injection frameworks. Do you need them for your code to be testable? No, even if it helps. Do you need them for your code to be modular? You don't, and do you really need modularity in your project? Reusability? Loose coupling?