As the old saying goes "if you cant please everyone then please yourself"
If we all went for the "Rule of thirds " theory many of us would not display any images.
The rule of thirds is very good and easy when doing a painting but not so easy when doing photography.
So the question is do you take a great shot or do you think "oh crap nothing in that third..better not take it"
We all strive for a good image but it isnt always possible to meet the criteria of every ones whims.
Nice shot by the way