It's entirely possible that sending the audience out feeling lousy was intentional

It is neither dumb nor smart enough to be fun, and spends way too much time with its boring human characters.

It's the kind of movie you'll want to see a second time with someone who hasn't seen it yet, to remember what it was like to watch it for the first time.

The film's masterful storytelling did its job. The message was clear. No need to overdo.