It was a rhetorical question followed by a supposition that does not have a specific intent beyond summation.
Here is my answer:
The word "art" has many meanings. We do not exactly know what the film "The art of listening" has to say about the word "art" until we watched it.
You asked us (the forum) what we would think about the term "art of listening". Also, you told us your definition.
You used a traditional definition, you said "listening" is not an "art". When I say "the art of listening" is an "art" i refer to the many meanings the word has.
I often use the words in a transcendental meaning. Sometimes this confuses others. I myself am often confused by rhetoric.
The film is now available to watch: