If you have something you want to convey to your listener (an idea, an emotion, information, a perspective, etc.) you have to convey it. Otherwise, you create confusion instead of art. If you WANT to create an abstraction whose intent is to elicit interpretation from the audience, then do that. But be honest with yourself. What is REALLY your intention? Do you really have something to say, or do you really want to create an abstraction? Too often, writers say one thing, but secretly mean the other.
If we HAVE SOMETHING TO SAY, it takes talent, skill, experience, and hard work to communicate that to a listener. It is quite possible we will fail. It is those failures that make the successes so sweet.
If our intent is to display a blank canvas and let people interpret as they wish, that is artistically valid (some would argue), but how can we fail at that? Or succeed? Where is the risk? Where is the bravery? Where is the commitment to an idea?
I have coached a lot of writers and I have heard this debate many, many times. Writers will tell me they don't want to spoon feed the audience. They want the audience to make up its own mind. Fine. But when I question them--when I dig a little--I find that almost 100% of the time, the writer actually has something he wants to tell his listener or reader. So, the truth is, the writer does not want to spoon feed (a valid objective) but has no confidence in his ability to convey his message using nuance and subtlety. So, it's a cop out. Be honest. If you have something to say, say it! Then take the lumps or enjoy the accolades. Why else do you write?