It wasn't a flop. It ran for two years, then toured the country for the next two. It paid back it's investment, so it's not considered a flop. A Critical flop, maybe, but that didn't stop the audience from enjoying the show.
The show garnered mixed reviews. Most of the negativity was centered on the plot of the show, the choregraphy, and the two female leads having nothing to do in the show.
The reviewers who did enjoy the show talked about the high energy of the dance numbers, the cast being great (Jeremy Kushnier as Ren in his breakout role, and this being a show that could "introduce a new generation" to broadway.
Hmmmm...isn't that what they are saying about Wicked now?
"My dreams, watching me said, one to the other...this life has let us down."