>>>>Would it have been easier to state a single positive (or neutral) than a double negative?
>>
>>>Nope. It was worded exactly like I intended it.
>>
>>Are you saying that your double negative was not unnecessary?
>
>Perhaps it was used for "literary effect"? Simpler isn't always better in this case.

My "not unnecessary" is itself a double-negative - I'm just killing some time whilst I ruminate on other problems.