It is when the forcing results from negligence rather than deliberation. In those cases, you're not being confronted with an alien, difficult, or profound concept? You're being given a broken version of a boringly ordinary concept, and wasting your brainpower on papering over an orthographic or grammatical crack that should have been cleaned up by the author, or the editor, or one of the test readers.

In these cases, you're not thinking about the material; you're thinking about carelessly it's been put together, and how little regard the author appears to have for the audience.