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

The plot isn't so bad, but the pace of storytelling is too slow which makes people bored. Certain moments are so obvious and unnecessary for the main plot. I would've fast-forwarded those moments if it was an online streaming. The ending looks like implying a sequel, not sure if this movie will get one

By the time the dramatic fireworks start popping off, each one feels earned.

Like the great film, it's made with a great deal of visible affection both in front of and behind the camera.