Rosie was a reason why the show failed, but not because of BAD producing. In fact, she put in an amazing effort in cheerleading the show for the press. Her outrageousness is a turn-off to some (her gimmicks are along the line of Ken Davenport), but her passion and spirit was valued.
As the SHOW BUSINESS: THE ROAD TO BROADWAY documentary provided a glimpse into, Rosie was battling both a lawsuit and the press while trying to make TABOO succeed. There is no doubt that it negatively impacted the show, though even if all that mess wasn't going on, who knows if the show would have been received differently. The Boy George audience came. TABOO won over some of the theatre-going audience. It never did get the tourists, however.
It also had STRONG competition that season. It had to battle the hugely successful AVENUE Q, THE BOY FROM OZ, and WICKED.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle