Our core beliefs on communication probably vary considerably on this matter.
Analogies are a method to quickly transmit wealth of information, cultural biases, and to determine a set of shared assumptions which become to a "common ground" on which the relevant points of the argument can be discussed, rather than fighting back on forth on every property of the scenario under discussion.
> I think it’s generally better for one to write what one means rather than using stale or disjointed metaphors.
If I was offering instruction, then maybe. If I am writing to convince then I use the literary tools which convince the most people; analogy and thematic devices. In this case I am asserting a social argument and bald data convinces very few people.
If all you have are the facts, then all you will receive is an argument over the facts.