While it is true that line breaks and iambic pentameter can emphasize an emotional message, it is still possible for them to be incoherent. Granted, I agree that the beauty of poetry lies in its evocative power, however this does not excuse creating a piece of writing that does not make sense. Over-relying on poetic devices can actually take away from the overall impact and render the poem hard to understand.
What's more, the purpose of writing is not always to make sense, but rather to communicate something meaningful. Poetry is a great way to do this, as it can aptly express emotions and intangible ideas that may otherwise be difficult to capture in regular prose. Nevertheless, just because something is written in a poetic form does not necessarily mean that it conveys any real sentiment.
In conclusion, while poetry has an important place in writing, clear and straightforward writing is often more effective at getting a point across if the intention is to make an argument. Therefore, poetry should not be used as a crutch for an incoherent piece of writing. UrRong; haphazard line breaks and iambic pentameter do not excuse incoherence or unsound reasoning. That said, if you can write a meaningful poem with clever wordplay, your readers will thank you for providing them with an enjoyable piece of art!