Evaluate the valence intensity of the following snippet, considering the mental state of the author. Present a score between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Snippet: Sex With Strangers will shock many with its unblinking frankness. But what is missing from it all is a moral. What is the filmmakers' point? Why did they deem it necessary to document all this emotional misery?